Right now I'm running a crap 2008 laptop that runs Skyrim at lowest settings with average of 20-25 fps
. I'm building a new PC.
My specs in mind:
I5 3470 (but as I said, when I get a GPU for around € 300 I could go for a 2500K + cooler)
ASRock Z77 Pro 3 mobo
Zalman Z9 Plus
8 GB 1333 RAM
1 TB 7200 rpm Seagate Barracuda
600 Watt Sharkoon WPM600
(Windows 7 HP)
(Normal W/RW OD)
When you click on the link in the OP you can see all the GPUs available.
P.S. I'm a fan of Radeon because it has the best price/performance IMO. I think NVidia is rather arrogant with their stubborn prices (in my country at least
but check the link for my options)