I don't know how sanyo PTZ works but as fot the PTZ controllers it depends on the DVR you are using many DVR's have built in PTZ controllers now.
Most PTZ cameras go into a DVR by RS-485 cable into the back of the unit.
I know of a good PTZ that is up on a demo site.
Shoot me a email at mirkwoodlol@yahoo.ca if you want to see a good PTZ and a good online web CMS for controlling PTZ.
Hope that helps.