Hi Brendan,
If your budget is tight and/or you prefer to build your stuff yourself (like many of us amateurs do), you might find this webpage interesting..
http://www.bbastrodesigns.com/BBAstroDesigns.html
While mainly it is about motorisation of dobsonians (however, this software supports eq mounts as well), you will find information on electronic setting circles (made out of old, mechanical serial mice) which this software supports in full.
http://www.bbastrodesigns.com/LarryS...Invention.html
With something like this, you can couple your scope with star chart programs (like Cartes du Ciel, freeware)
I build my encoders using mechanical mice guts, interface is David EK' box, information is here:
http://eksfiles.net/digital-setting-circles/
and here:
http://www.iceinspace.com.au/forum/a...se.php?a=65266
and here:
http://www.iceinspace.com.au/forum/s...ad.php?t=54549
Also, try to search this forum for DIY encoders etc, many people presented wonderful technical solutions for this problem (Kinetic, for example)
http://www.iceinspace.com.au/forum/s...ad.php?t=51290