Update: looks like there's a package called kdeaddons available. I think that might be what I'm looking for. Unfortunately, when I try to install it, I get the nastiest portage blockage I've ever seen.

Here it is:

pxc@localhost ~ $ emerge -ptv kdeaddons

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[ebuild  N    ] kde-base/kdeaddons-3.5.7  USE="arts berkdb kdeenablefinal sdl -debug -xinerama" 1,696 kB
[ebuild  N    ]  kde-base/kdemultimedia-3.5.7  USE="alsa arts encode flac kdeenablefinal mp3 theora vorbis -akode -audiofile -debug -gstreamer -xine -xinerama" 0 kB
[ebuild  N    ]   media-sound/vorbis-tools-1.1.1-r3  USE="flac nls speex" 931 kB
[nomerge      ] media-sound/vorbis-tools-1.1.1-r3  USE="flac nls speex"
[nomerge      ]  media-libs/libao-0.8.6-r3  USE="alsa arts esd pulseaudio -doc -mmap -nas"
[ebuild  N    ]   media-plugins/libao- pulse-0.9.3  308 kB
[ebuild  N    ]    media-libs/libao-0.8.6-r3  USE="alsa arts esd pulseaudio -doc -mmap -nas" 382 kB
[nomerge      ] kde-base/kdeaddons-3.5.7  USE="arts berkdb kdeenablefinal sdl -debug -xinerama"
[ebuild  N    ]  kde-base/kdegames-3.5.7  USE="arts kdeenablefinal kdehiddenvisibility -debug -xinerama" 10,566 kB
[ebuild  N    ]  kde-base/kdepim-3.5.7-r3  USE="arts crypt kdeenablefinal -debug -gnokii -xinerama" 0 kB
[ebuild  N    ]   app-crypt/pinentry-0.7.2-r3  USE="gtk ncurses qt3 -caps" 390 kB
[ebuild  N    ]   app-pda/libopensync- 0.22  USE="python -debug -doc" 479 kB
[ebuild  N    ]    dev-db/sqlite-3.3.17  USE="-debug -doc -nothreadsafe -soundex -tcl" 2,062 kB
[ebuild  N    ]   app-crypt/gpgme-1.1.4  922 kB
[ebuild  N    ]    app-crypt/gnupg-1.9.21  USE="X ldap nls -gpg2-experimental (-selinux) -smartcard" 1,858 kB
[ebuild  N    ]     media-gfx/xloadimage-4.1-r4  USE="jpeg png tiff" 623 kB
[ebuild  N    ]     dev-libs/libassuan- 0.6.10  252 kB
[ebuild  N    ]     dev-libs/libksba-1.0.0  491 kB
[ebuild  N    ]   kde-base/kdebase-3.5.7-r3  USE="arts branding cups hal kdeenablefinal kdehiddenvisibility ldap logitech-mouse opengl pam samba xscreensaver -debug -ieee1394 -java -lm_sensors -openexr -xcomposite -xinerama" 0 kB
[ebuild  N    ]   app-crypt/gnupg-1.4.7-r1  USE="ldap nls readline zlib -bindist -bzip2 -curl -ecc -idea (-selinux) -smartcard -static -usb" LINGUAS="-ru" 3,126 kB
[nomerge      ] app-crypt/gpgme-1.1.4
[ebuild  N    ]  dev-libs/pth-2.0.7  638 kB
[blocks B     ] =kde-base/libkmime-3.5* (is blocking kde-base/kdepim-3.5.7-r3 )
[blocks B     ] =kde-base/libkcddb-3.5* (is blocking kde-base/kdemultimedia-3.5.7)
[blocks B     ] =kde-base/kdesktop-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdeprint-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kpersonalizer- 3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdepasswd-3.5* (is blocking kde-base/kdebase-3.5.7-r3 )
[blocks B     ] =kde-base/kmenuedit-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kate-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdialog-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kcminit-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/khotkeys-3.5* (is blocking kde-base/kdebase-3.5.7-r3 )
[blocks B     ] =kde-base/kdebase-kioslaves-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdemultimedia-3.5* (is blocking kde-base/kmix-3.5.7, kde-base/kdemultimedia-kioslaves-3.5.7, kde-base/libkcddb-3.5.7)
[blocks B     ] =kde-base/kdebase-3.5* (is blocking kde-base/konsole-3.5.7, kde-base/kdesktop-3.5.7, kde-base/ksmserver-3.5.7, kde-base/kdebase-kioslaves-3.5.7-r1, kde-base/kdepasswd- 3.5.7-r1, kde-base/kreadconfig-3.5.6, kde-base/kcheckpass-3.5.7, kde-base/kfind-3.5.7, kde-base/kdebase-data-3.5.7, kde-base/kdeprint-3.5.7, kde-base/khotkeys-3.5.7, kde-base/kdialog-3.5.5, kde-base/ksysguard-3.5.7, kde-base/kdesu- 3.5.7, kde-base/libkonq-3.5.7, kde-base/khelpcenter-3.5.7, kde-base/kdebase-startkde-3.5.7, kde-base/kpersonalizer-3.5.7, kde-base/konqueror-3.5.7-r2, kde-base/kmenuedit-3.5.7, kde-base/kcminit-3.5.6, kde-base/kcontrol-3.5.7-r1 , kde-base/kate-3.5.7-r1, kde-base/kwin-3.5.7, kde-base/kdm-3.5.7, kde-base/ksplashml-3.5.7, kde-base/kicker-3.5.7)
[blocks B     ] =kde-base/khelpcenter- 3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/libkonq-3.5* (is blocking kde-base/kdebase-3.5.7-r3 )
[blocks B     ] =kde-base/kdepim-3.5* (is blocking kde-base/libkmime-3.5.7, kde-base/kdepim-kioslaves-3.5.7-r1)
[blocks B     ] =kde-base/kdebase-startkde-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kfind-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kcheckpass-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdebase-data-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdesu-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdm-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kreadconfig-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdepim-kioslaves-3.5* (is blocking kde-base/kdepim-3.5.7-r3)
[blocks B     ] =kde-base/ksplashml- 3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kcontrol-3.5* (is blocking kde-base/kdebase-3.5.7-r3 )
[blocks B     ] =kde-base/kicker-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kdemultimedia-kioslaves-3.5* (is blocking kde-base/kdemultimedia-3.5.7)
[blocks B     ] =kde-base/konsole-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kmix-3.5* (is blocking kde-base/kdemultimedia- 3.5.7)
[blocks B     ] =kde-base/ksysguard-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/ksmserver-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/konqueror-3.5* (is blocking kde-base/kdebase-3.5.7-r3)
[blocks B     ] =kde-base/kwin-3.5* (is blocking kde-base/kdebase- 3.5.7-r3)

Total: 18 packages (18 new, 35 blocks), Size of downloads: 24,716 kB

--
Amarok: Rediscover your music.
-- http://amarok.kde.org

Sabayon Linux: Cutting Gentoo's edge.
-- http://www.sabayonlinux.org