I'm sure this has been asked before, but OC versions of cards are just more expensive bc they've overlocked them for you? Basically its a waste of money to pay 20, 30 or 50 bucks for 100 more Mhz right? I just ordered an XFX 7970 but its the stock speeds. I can overclock it with MSI afterburner or does XFX have its own software? OC'd or not, the card is gonna kick *ss. Just wanted to make sure i shouldn't be moanin and groanin that I didn't purchase the Black Edition (which is surprisingly white btwhttp://img.tomshardware.com/forum/uk/icones/smilies/kaola.gif). Thanks guys!!
Congratulations, you didn't get caught in the marketing schemes. Seriously, the OC versions are generally over-rated. It's only worth it whenever you get a good deals (as in you pay the same price as the non OC ones) because like RGD said, they get better cooling and/or voltage ratio.
Depending on how your airflows in your case, you'd be able to achieve the almost (if not the same) OC with stock coolers.