Please help! Upgrading from 5770 crossfire Hi there. Is the 5770x2 really worth it over the 6870? Lower power consumption, driver compatibility and performance are my reasons to upgrade/downgrade. My retailer told me that I'll just add Php1k-2k ($25-$40 USD) if I'll trade in my 5770x2 to a single 6870. So, is it more practical to trade in to 6870 or I'll just keep my crossfired 5770 or wait for the 69xx series to arrive? I don't know much about the 69xx series yet but I guess I'm going to add more than $100 to upgrade when they come out and that's expensive for me. But I think 69xx are like 225w-300w? Just wanna ask. Thanks!