I'm building a virtual "server farm" inside a big linux box.  It will be
an LTSP server running normal Linux apps for the remotes PLUS several
instances of VMware 4.x for Linux hosting various OS's.  Unfortunately,
VMware requires a fixed amount of RAM to be carved out for each guest
OS.

This means I need lots-o-ram.  

Where is the cheapest place to buy ram?

...Kevin