Thanks for the replies, it's good to hear from people who've used the sites. The amount of time a withdrawal takes is not really a big issue for me as long as it's not totally unreasonable. And, obviously, as long as the withdrawal fees aren't prohibitive! Hopefully some of the other exchanges can grow a bit in the light of MtGox failing to keep up with increased interest in BTC  

Thanks. Looks like there are limited withdrawal options for me on some of these (I'm UK based)  guess it's just going to take a long time to wade through them all and work out a sensible option.

Hi all. I'm not entirely new to Bitcoin (have been playing poker with btc for a while) but I've never tried buying or selling btc before and don't know much about that. I don't particularly want to join the current trading frenzy but would like to know for future reference about options for buying and selling. MtGox seems to be ridiculous at the moment. I've read a few articles listing exchange sites, but would be great to get advice from personal experiences. What are the most reliable/convenient/trustworthy/good-value options? Thanks in advance to anybody who's willing to share their thoughts