Im not sure i would go with that power supply. Best to go with corsair, seasonic, coolermaster or thermaltake. Maybe get a 500g drive with 32meg cache or 64. You won't really see the difference with a mechanical drive between sata II and sata III.
Also anything branded xtreme gear is not worth any amount of money.
Over all for the money you may want to configure a Sandybridge based system over the I7 (1366) based system. The 1366 is pretty much at the end of its life cycle but the sandybridge Intel has stated will be compatable with the IvyBridge processors so you would have a good upgrade path.
With the 30gig ssd you had I was thinking it was free if you ordered the kingston ram. It would only be about big enough for an OS drive and a few programs.
You would be at the same budget with the above build if you dropped the 120g corsair drive.
and would we consider Proximon's build to be as good or even better? I would drop the ssd to save money but want to know if I got SATA-III 6.0gb/s would that be an upgrade as my only HDD for this system?
Not really. Most or all of the SATA III drives are no better than the SATA II ones.
There is a very nice motherboard there with the ability to add a second video card later should you get the need. The processor is stronger, and the overclock will make it even more so. You get 8GB instead of 6GB RAM, a small upgrade.
The board also has built-in Bluetooth.
The PSU is much higher quality and will cover a second 6950 should you get the urge.
Asking about the SATA III only because it's just $14 more, and you believe that it'll be ok to go with the i5-2500k rather than the i7-960? Basically my plan is to play rift until Star wars:ToR comes out and would love to play with max graphics.
any tweaks you would do if it was through newegg rather than cyberpower, building the computer isn't much of an issue thanks to some comp savy friends. I'm actually looking to go with the build you posted minus the ssd