Found this, it looks like it does the job easily - take's the thinking out of the doing ;)
http://www.naa.net/garzarolli/alignmaster/index.html (http://www.naa.net/garzarolli/alignmaster/index.html)
This is simply the iteration method, which you can do easily enough with a GoTo handset anyway.
you shouldn't use this software.
Why,
he uses the stars
Capella, Betelgeuse and Rigel amongst others
Which if you use these to drift align / itteritive you wont actually be able to drift align!!
http://www.covingtoninnovations.com/astro/iterating.pdf (http://www.covingtoninnovations.com/astro/iterating.pdf)
Mac.