It sounds like you'd be in great shape with a data-capable CPAP such as the ResMed S9 Elite. If you wanted to go a step above that you could get the ResMed S9 Autoset.
Alternatively, you could go with the Philips Respironics System One (PRS1) Pro, or the Auto. Just be aware that if you get one of the newer 60 Series machines you won't yet be able to use SleepyHead software or Encore Basic. You'd have to pay for the Encore Pro software and use it until SleepyHead gets updated. The older Model 50 Series machines are on sale now, work perfectly well, and can be used with SleepyHead. I've got one and I'm very happy with it, although most of the experienced users on this board seem to prefer the ResMed machines.
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I have been using my new machine and will post a new topic about it shortly. I can't thank you all enough!!