This link will hook you up to Kelling Heath.

http://www.kellingheath.co.uk/

 Wanna big Meade?..these boys will sort you out!

http://www.telescopehouse.com/

This is a good 'after market' G.P.S. I reccomend the full version as it is more impressive when somebody is looking over your shoulder!!  

www.stargps.ca/