1) Buy a gigabyte 560 Ti super over-clock series if you can get one in stock for under $270
2) Buy the MSI 570 OC (I just bought it) for $309 before MIR of $20
The 570 is pretty damn sweet and will offer improved performance in bandwith limited games & tessellation due to having more physical hardware than the 560. But, the 560 SOC (if you find one in stock) gives you full warranty at 1000Mzh core shader and fps that are close to a stock 570 and saves you $30-40.
Unless you don't want/need the performance boost of the 570 over the 560, go with the 570 imo. I'm super happy.
The fan profile [for the 570] is a little stupid, but that's for acoustic reasons.
@ 85 C it only spins at 60% which is audible, but not annoying or too loud. This card loves to run between 85C with an ambient around 20C in a case with good airflow. Still,the fan will break 60% when your temp increases past 85C to keep it under 85. Very very quite at idle and low loads.
The problem that I see with these cards that are super overclocked to the extreme is that there is a lot of stress on the gpu , so I think it would shorten the life of the gpu. I would rather go with the card that is manufactured to be a better performing card and is not totaly stressed out. It will last a lot longer , so the deal you got with the 570 is a good one and I would also go with it.
There is also a 570 for 269.99 after rebate as well on newegg. Not sure of the quality of it though, Galaxy brand. Never used them before. I STILL dont think any of these are tied to the new card coming in. I really dont. I think they are just black friday//early cyber Monday stuff. I still think it will be :