Gee, Sunk, turn that baby upside down and pull the 64 and 32 meg sticks and stick in a couple of 512s... shouldn’t cost much more than $80. No wonder you didn’t like OSX...
I don’t have OS X on the iMac, and the reason I don’t like OS X is the interface (not to mention that problem I had emptying the trash a year and a half ago); also, as you may have forgotten, the rev B iMac requires pulling out tools and an instruction manual to change drive and/or RAM. The later revisions have the cute little doors.