After years with a laptop and being out of the hardware spot, I'm looking to build another desktop computer. I'd generally just go AMD since I've always used those in built machines. However, I figured I'd look at both processors. When I was involved, the real debate was over clock speed. Now these chips have major differences in FSB speed, L2 cache size, 64 bit support, and clock speed. Can anyone help me compare the higher end offerings from these two companies? For reference, I mostly use my machine for daily Internet activities but I'm also a full time software engineer. I don't need the greatest graphics but I need the machine to be super quick when having many tasks going on at once.