Club Overclocker published a Sapphire Radeon HD 4850 512MB review.

Quote from the review: "What a crazy week this has been. First, with the unintentional early release of the 4850, followed by the nVidia bombshell announcement of the 9800GTX+, there has not been a dull moment. All this chaos in the market has precipitated a serious price war in which all of us win.
Even with the MSRP of $199, we are already seeing the 4850 sell for as low as $160. 8800GTX like performance for under two bills? Yes, please! All on a design that sips power and uses a single slot cooler? Where do I sign up?"
Read the full review on Club Overclocker.