My E6600 gets to 63 degrees load, I'm going to need a new cooler as I dont like thos temps so might aswell get a new CPU since I want something a little faster, I'm going to post on another forum see what people think, cant post here cause it'll get flamed or locked.
Well you're safe up to 80 degrees any way, I'd upgrade something else in the system personally, but again it depends what you use the computer for.
In gaming there will be no difference at a high res, but I'm sure you know this anyway.
If I could get a nice boost in FPS from faster clocks (at this res) I'd happily jump ship.
I don't use Photoshop/Video encoding enough to justify going for a faster CPU, and if I did for them things it would be a Quad.