I'm impressed with Intersango when it comes to GBP/BTC transactions - Mt. Gox had 4 transactions in GBP yesterday, which means you don't / can't get near market value when buying or selling, the market isn't deep enough. Intersango does take a few days to get around to processing bank transfer withdrawals, but they don't charge for them, so that does balance out. Deposits they seem to process real quick like ;)Just remember how fucking quickly things move in this arena, and don't store any value you can't afford to lose with any of the online btc trading houses.