TradeHill is the best to use right now IMO.

I just withdrew the <$100 left in my MtGox account and it took forever to hit my Dwolla account (days opposed to hours from TradeHill).

Don't leave large sums of money just sitting around without a purpose in ANY of these exchange sites.


Bitcoin7 is high on my "we gonna scam you" radar. Anyone praising them is probably a shill. When they first started they refused to recognize glaring security holes. That was enough for me to avoid them for life.