Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
is it 'worth' upgrading from a 3.2 6600 to a 4ghz i7? (includes upgrading to ddr3 6gig from 4gig i suppose)
It deserved it.
Clearly it is ludicrus to expect those temps on a standard heatsink.
Wind your neck back in.
Wow, chill mate. Load temps do give more important information. Idle temps can give an idea, but if the cooler then craps out at higher temps, the load is much more relevant.
I also see no reason to go higher than a Q6600 atm, money is better spent on a gfx card. As for future-proofing, we all know no such thing exists, it's just a justification to spend more or buy a new expensive rig when the old one was probably fine!
Ill stick my kneck out here and say that the q6600 is possibly the best cpu intel have ever made, had one at 3.8ghz on air, fantastic cpu.