I decided to quickly do some testing with extra volts before i retire this card.
I bumped the gpu up to 1.33v and went for gold. I managed stable clocks (3dmark, crysis, cod4) at 850mhz on the core. This was only 40mhz lower than with watercooling at the same voltage. Temps only just hit the sixties (full load) even with such high clocks and overvolted. This really says something about the quality of the heatsink.
Anyway, here's the usual screenie to justify my rambling above.
I'd recommend this little bugger for anyone who wants to do some overclocking on the cheap.