this is a very nice post. i think this is the ideal specs for building a very powerful computer. thanks for sharing
these specs are actually quite noobish now since the time of your post, December 2008. The Core i7 / X58 platform is finally here - that's where the real deal is!
p.s. check my sig.
But for performance/value? Everything in a Core i7 rig is going to be quite expensive till they release the dual channel processors.