The GTX 460 (1GB, 256-bit bus version) would be your best option, I guess?
You can get the rough overall performance ranking here: http://www.tomshardware.com/reviews/fastest-graphics-card-radeon-geforce,3085-7.html
In your case, a dual GPU card... yeah. CrossFire stuff needs patches for everything. This is why I don't like multi-GPU. NVIDIA's solution is more stable in this regard, I'll agree with you there--but from what I've heard, it's not perfect, either.
I don't even hear it during graphic intensive games like BF3. Only fans I hear are the 4 fans on my case and even those aren't that loud on Middle speed :P***lol, well you don't turn your fans up all the way. I don't either, it gets loud when you turn them up all the way. If you just let it go automatically, you only have to hear it under maximum load, which is acceptable. It's kind of like a loud yet powerful engine, in a way. Something about hearing it push with all its might is appealing.
The GTX 460 (1GB, 256-bit bus version) would be your best option, I guess?
You can get the rough overall performance ranking here: http://www.tomshardware.com/reviews/fastest-graphics-card-radeon-geforce,3085-7.html