Hi,
In case anyones interested, I just finished mounting a home made autofocuser onto my OTA. It was a fun little project and only took a few hours to fabricate an auto focuser from some broken toy parts (also free). If anyones interested, these projects have just been updated and can be found on my accesssories webpage (address in the signature).
I posted some preliminary info on these projects several weeks ago in the accessories forum, but it seems a bit more appropriate to this forum (sorry about the double posting).
Bill