My AMD64 setup slaughters most other PCs in at least 90% of tests (P4 based that is) AMD64 is the way to go. They are 64bit for the future, have an ENORMOUS front side bus (1600-2000Mhz) and have an integrated memory controller which allows for the processor to access things at enormous speeds from the RAM. The P4 is not superior in ANY form, HyperThreading or not. Hyperthreading cool, but it pales in comparison to the Intg. Memory Controller on the AMD64s. The new 939 interface allows for huge bandwidth (14.4GB/sec) compared to the measly 6.4GB/sec on the HyperThreading P4s. I GUARANTEE MY PC WILL SLAUGHTER ANY PERSONS P4 BASED SYSTEM ON CF. 100% GUARANTEED!