I know more then your average person about this stuff, but I'm usually doing stuff with $1,000 budgets for the entire rig and don't know enough about the super high end stuff. My buddy is doing one and he has a $3,000 budget, but he already has some parts from his old one(case, psu, liquid cooling, drives). So this is what the budget will cover. 1. Dual video cards. Looking at the GTX 580, but not set in stone 2. SSD 3. I7 Extreme 4. Motherboard to support 5. Max amount of RAM (although it seems like 24 GB is the common max) Someone can educate me on how crossfire works too This thing is going to be a beast.