|You are selecting a Crossfire motherboard which requires ATI based Graphics cards. The card you chose is nVidia based. So the card is not compatible if you want to run Crossfire. If you don't want to run crossfire then why but a Crossfire (2-PCIe x16 slots) motherboard? |
To give a definitive answer on the power supply requires you to state your final intentions as far as running Crossfire. Two top end card would need more amps than that PSU can supply.
When buying RAM it is best to choose RAM modules that are on the manufacture's QVL list. That can be found at their website. Running more RAM would depend on what OS you intend to use. 32 bit versions can't even use all of 4GB. 64 bit versions can support much more.
Processor is fine for that board but as stated above, if not using Crossfire there are less costly alternatives.
IMO the hard drive is a good choice in the 1TB size.
Case is a personal choice. I don't believe in spending a lot on one myself. Main thing is if it has good cooling and any front connections you need.
Post back about the Crossfire.