HD6970 vs newer GPU's, pls help me decide.

Hi, i need your help to decide whats better for my PC.

My rig :

Phenom II x4 965 BE, 3.4 MHz (stock clocks)
8 GB DDR 2 OCZ Gold Edition 800 MHz
K9A2 Platinum Motherboard
500W RaidMax Power Supply
8800 GTS 512, 256 bit.

I want to upgrade my GPU and maybe my power supply also.

I have found a Club 3D AMD Radeon HD 6970 Coolstream Edition + Accelero Xtreme PLUS II for only 220$. And i think thats a decent card.
In my country the cheapest HD 7850 is ~230-240$ and it's not as good as a HD6970.

What would you guys recommend me to buy?
1. MSI GTX 550Ti 1 GB = 130$
2. Palit GTX 650Ti 2 GB Edition = 210$
3. Sapphire HD 7770 Vapor-X = 160$
4. Club 3D HD 6970 = 220$
5. MSI Radeon HD 7850 = 240$
6. Gigabyte GTX 560 1 GB = 210$


If i buy the GTX 550Ti or HD7770, i plan to SLI/CrossFireX in February. If i buy any of the others i wont SLI/CrossFireX untill maybe the end of the next year.

I use 1920x1080 resolution, i don't rly play many shooters. I usually play only MMORPG's and RPG's like Skyrim and older ones.

Right now i am thinking of a SLI GTX 550Ti from MSI since they have 192bit and its cheaper than HD7770. And i am also thinking for the HD 6970 GPU or a HD 6950.


What would you guys recommend?