I truely hate macs, but an add in a magazine for the g5 or something like that that offered 16 gigs of ram for 11k. Plus a few grand on the computer. And i know a guy who builds servers, he has some special motherboards (computers for the sole purpose of rendering) that had 32gigs of ram, and 4 xeon processors, with 100tera's of space, but i never saw them myself so he could have been exagerating.