FLS, hopefully there's a typo in your post: GDDR
3???
@ Rolex, the parts list FLS posted is a good one for many years, but SSD as a hard drive is overkill for playing AH. Just so you know, they do make things load faster but they won't improve your frame rate at all. So if you think that it's crucial to get Windows up and running half a minute faster, and also getting to the AH arena choosing screen some seconds faster, get an SSD. If you'd rather use the half a minute for taking care of your liquids balance, get a standard hard drive.
Also, if you're not into multiple monitors, double video cards don't give that much of a boost. Instead of two R9 280's use the same money for a single R9 290X.
Also, even with two high end video cards a 1000W PSU is too much and may even cause trouble. A good quality one of 650 W true power should be enough for a 290X. Amperage is what matters, not watts. AMD's current flagship, the R9 295x2 needs
- 28 A of current to each of the 8-pin auxiliary
power connectors on your graphics card - 50 A of combined current to the pair of 8-pin
auxiliary power connectors