So... Looks like I'm going to go pick-up a couple of 660Ti to replace my two GTX460s. The 460s will end up in the kid's machine, which will make him happy.
The old cards are about 2 years old. Other than cleaning the fans and blowing out any dust (I do that regularly so shouldn't be much), I was thinking about pulling the coolers off and re-pasting the GPUs. Any suggestions here or just leave them be?
And no the cards aren't failing and normally run around 37C idle, up around high 40s low 50s when gaming.