Re: Upgrading from...A long time ago
If I were you, I'd just upgrade your GPU for now, and see how I liked the new performance.
Why are you upgrading? Is my question to you.
If your main reason is fps/gaming.
Then just upgrade your GPU for the moment, and see if it's a good enough upgrade for you.
Secondly. If you purchase an AM3 motherboard you WILL need DDR3 RAM.
That motherboard you're looking at can take 1800 Mhz RAM... But really there's no need to buy RAM clocked that high, because it's overly expensive and you can just buy standard 1333 or 1600 Mhz DDR3 RAM and overclock it.
Now, as for that graphics card?
I don't recommend the GTX 260 to anybody because it's overpriced.
It's $200+ and performs around the same as a 5770...
And 5770's are around $150~
Though if you really like PhysX or something, I suppose you can stick with Nvidia?
Just trying to help you save money...