Filesystem fun

More fun from me on filesystems. I am trying to ditched vfat, but as i do not
have another unix box in the house and do not have the first clue about how to
get samba working (that will wait for another day) I am copying my 6 gigs of
stuff into a vfat partition, and then copying it into a ext3 partition.

How do I get me hda2 (ext3, 20 gigs) to eat my hda3 (vfat, 6 gigs) so that it is
one big hda2 (ext3, 26 gigs)?

Or would this be easier with reiser or xfs?

Thanks for any possible help...