I'm in the same boat.
I don't think the gtx265 is worth it.
I think you're looking at gtx285 or gtx295.
If you dislike SLI or don't want to spend that much, you're looking at gtx285 effectively. I'm waiting to see pricing before I pick. I will not be getting a gtx265.
Thats my 2 cents on the matter.
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