welcome tot he forums newcomer!
might want to look for one at a garage sale, or on craiglist ... honestly what would you need with older tech?
how much dya have to spend on a new aquagate? (if it ever fell from the sky and landed on a resellers lap :P )http://www.tomshardware.com/reviews/ibuypower-dream-2006-crossfire-gaming-system,1387-2.html
if you have a LGA775 rig, might want to look at the Corsair H50, H60, H70, H80, H100 or the Antec 620 / Antec 920