Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Vie:BTW, the ATX50 and ATX200 second stages are pretty much identical except for the front cover. (I think) the ATX50 comes with the DST first stage (with swivel turret). The ATX200 is paired with the FSR (non-swivel) first stage.
moxie:Scubapro might be easier to repair or find parts for at Caribbean dive destinations than the Apeks.
serapis:One more vote for the s 6oo. Love it breaths easy and dry. You most likely cant go wrong with any of the above though.