My main PC has just died.....

Now I must be getting too sensible since I am thinking of getting a Core™ i7 3930K Six Core 3.2GHz with a GTX 670 graphics card, but my dad brain is telling me 'why are you buying this?' The CPU is nearly FOUR times as fast in benchmarking, and the graphics card twice as fast.....what would I do with all that?

Then I look at the i3 and think

I'd like to see what Blender could do with all that though.......