Wow are you running that E8500 at stock?
As you are asking, yes, I am eagerly awaiting Ivy Bridge.
Stop reading if you don't care about why.
I bought my E8500 in Jan 2008. Awesome CPU. I didn't think the early i5 or i7 CPUs were worth the upgrade. Especially since so many games never really truly use more than 2 cores. I bought a gtx260 in Oct 2008. They were a nice match. For 3 years I could play most games with acceptable eyecandy and acceptable framerates. (I value eyecandy above pure framerates).
I decided to skip the gtx460. It wasn't even twice as fast as the gtx260. The gtx480 was too loud/hot. There were already rumors of the 500 series. So I waited.
I did buy a gtx580, exactly a year ago. But it was very loud at idle. Which irritated the heck out of me. So I sent it back. I was playing Rift at the time. The gtx580 didn't make the game more fluent than my gtx260 did. All it did was enabled me to go from 4xFXAA to 4xMSAA. Ending up at the same framerates. I thought 430 euros was too much to just switch AA modes.
That was a mistake. I should have kept the gtx580. And use Afterburner to tweak the fanspeeds. Still having my gtx260, I decided to not buy a Sandy Bridge cpu. And to wait for Bulldozer. Not worth the wait. But new AMD and Nvidia GPUs were expected in a few months. And Ivy Bridge in January. So I waited more. And more. And more. If I had known about all the delays, I would have bought a gtx580 and 2500k a year ago.
But the wait is over. My gtx680 is here. My 3570k or 3770k will be here in 4 weeks. Looking forward to it.
But the E8500 was an awesome CPU. I expect framerates to go up in many games with a 3570k. But not by much. Most modern games depend more on the GPU now. Even Skyrim.