listen to ricecooker the 2500k is the best deal going. I have it and it slams through everything. Put saved 100 dollars in the video card. IF you can wait a month or two hold out for the 7000 series video cards. They should be here in the fall.
I would just run the card I have.
memory 16 gigs of Corsair. If you want a ssd. I know there are many choises. I have had several and I now have an intel 320, its fast but not the fastest.. but its the most reliable.... I have rma two other name branded ssd.
for a data drive look not further that a WD black.
As far as SSDs go, the Crucial M4 is the best drive for the money right now. The 320 is a good drive too, but the M4 has had the fewest issues so far. OCZ's drives have had a decent number of issues with the controller that I wouldn't recommend anything but a solid second gen drive, which are slower than the current gen 3 drives.
As far as hard drives go, the best drive on the consumer market is the Samsung F3 (max 1TB). The WDs are somewhat of a gimmick because they use a SATA III controller but can't read at even the max SATA II speeds. The F3 has a higher platter density which gives is faster read speeds than the other drives.