Ive been think about building several computers to do nothing but crack SETI and Folding and I was thinking, would the P4s HT capability give it a boost over the Athlon XPs? It seems to me that the "2 procs in one" would give a significant boost in this area. The plan is to get some cheap cases/PS, P4 mobo w/ onboard video, 256MB of PC2100 for each, cheap hard drive, CD rom, and hook them all up to a KB/mouse/monitor switchbox. Load up SETI on half of them, and Folding on the other half and let 'em rip. I'll need some kinda network setup since they gotta be able to connect to the net and dump their completed workload and get the new batch. So its a matter of cost/performance really. If there is no real diff in computing power in this area between the Athlon or P4, Ill get the Athlon cuz of the lower cost. But if not, it will be worth it to go P4 to get the better crunching power. What do you think?