BTC-E is great in terms of being a fully functional quick exchange that accepts a wide variety of payment sources and also has a real-time chat room which although trolly at times is fairly novel and interesting to watch from a speculative perspective. I know some people are worried that it is based in Russia but I think that it certainly the best option right now. The decline of Mt. Gox seemed inevitable their servers sucked and their costs of transferring money were expensive and their means of transferring funds were too few.