So if I understand correctly Bitstamp is now the only valid exchange left?
CaVirtex for the lulz, and the rapidly depreciating CAD!
CampBX is a decent choice for US users, so long as they don't need oodles of market depth and don't mind the shitty interface. I'm not sure why more don't use it. Depositing by personal check or money order is not bad either. They had ACH until recently but good things never last...