Everybody used to say that you need a Meade mount and the autotracking/autoguiding/imaging Envisage software that came with the Meade DSI and LPI for autoguiding. Well that is not the case as i recently found out. There are now other software compatible with the DSI, DSI PRO, DSI-II, and LPI which will allow these cams to autoguide even non-meade mounts with ST4 autoguider ports. PC connection to mount is achieved by using Shoestring Astronomy's GPUSB (USB) and GPTINT-PT (parallel port) cable adapters.
Here are the link to those software:
Commercial:
MAXIM DL
K3CCDtools
Freeware:
Guidestar 1.1
(freeware LX200 Emulator) + Envisage software
If you dont want to shell out cash, the freeware would be an option
  