Graphics Card Upgrade, will Corsair TX650W take the load?

[spencerlievens]

Here is my system build so far:

HAF 912+ Midi Tower Case (High Air Flow)
2 x 200mm Coolermaster Megaflow Fans (Front & Top)
1 x 120mm Case Fan (Rear)
1 x 140mm Case Fan (Side)
Intel iSeries i7 930 Processor (Plan to OC to 4.2GHz)
Coolermaster V6GT CPU Cooler
Gigabyte GA-X58-UD3R Motherboard
Corsair TX650W PSU

So my plan at the end of the month is to get 2 x Western Digital 'Caviar Black' 1TB hard drives and put them in RAID 0. I am also looking at getting either the Dominator GT 2000MHz Ram or some ram of equal speed and quality and either a LG DVD/RW or Sony DVD/RW. Now my problem lies in what graphics card to get, I've had a look at a lot of benchmarks, videos and forums and from what I can gather the best bang for buck is the GTX 460 768MB version in SLi, BUT, I am worried that my PSU may not be able to handle the SLi, SO, I have also been looking at the Sapphire AMD ATi Radeon HD5870 'Vapor-X' Card. I am fully open to suggestions and my budget for the graphics card(s) is between £250 and £300 any suggestions would be greatly appreciated.

[Eru]

There are many graphic cards available in market and so it is a bit confusing to choose best of them. In my case I am using Nvidia GeForce 9600 GT and that is running without any problem. Any way you can refer to this thread and see if you can get any idea from this. They have mentioned many graphic cards with a short description of that. I hope that that this will help to decide the graphic card to buy. Thank you.