I would go to newgg.com and buy the black evercase with a 300w ps for 42, asus's tusi-m mboard for 68, a p3 for $122, 256mb ram for 50, cd and floppy for 40, and a maxtor drive for whatever size you want. With shipping you will spend less than $500 and you never leave your house. The board has integrated nic and video and has run redhat 7.2 no problem. I have a test register that dual boots with linux and win98. I built it to test monmotha's boot image for my POS environment, but it got deployed before I got to it. I am building 5 of these the next few days along with a bunch of other boxes. I hope this helps some.
scott
