Upgrading, will this all work?

[viion]

I'm looking to upgrade my PC, I've pointed out what I want, I just want to know if there is better for this specific setup:

CPU: INTEL CORE 2 QUAD Q9550
MB: XFX nForce 750i Motherboard
RAM: Corsair DDR2 XMS2-8500 4GB
GFX: XFX GeForce GTX 280 – 1GB
CASE: Antec Twelve Hundred
PSU: Antec TruePower Quattro 850W PSU

Comes to around £900 exVAT.

I have around £1.2 to spend within exVAT prices.

I was thinking of getting the Quad Q9650 but the price jumps up £100.

I'll be putting on Vista Ultimate 64bit and so I may also upgrade to 8GB RAM which will be enough for me. I think it should all work together, not entirely sure. I may be interested in a rapter drive if there is any good ones, but i do currently have 3 SATA's, (I also got all rest componants).

This setup good to go or is there better within it's range?

 

[viion]

I might SLI, that is one of the reasons why I choose the board. But this machine won't be used for hardcore gaming at all, and that is the only reason I think I would need the SLI.

I will have a look at them boards! thank you