I am running prime95 right now just to see what the temp gets up to. What temperature is too high when running P95 on a 2500+ with stock cooling (not overclocked)?
I think as long as you're under 60 then you won't encounter any trouble, though I wouldn't really want my processor running at 60 degrees all the time. And if you're hitting 60 stock, then you're not likely going to want to overclock it.