I was browsing Newegg trying to find a card for a new build and came across a card from Visiontek. It seems like a good deal (Radeon 6850 for $140) but as I had never heard of Visiontek before, I wasn't sure whether it was a good buy. Are brands as important with graphics cards as they are with things like power supplies? And if so, is Visiontek a good brand to buy from?