Telescope Control Program?

Can anyone recommend a good full feature telescope control software program to me? Appreciate your advice.

I use 'The Sky 6' Professional Edition from Software Bisque to GOTO control my Takahashi NJP Mount. I am also familiarising myself with T-Point to refine the mounts GOTO accuracy. There is also programs from Starry Night (Starry Night Pro) which some people think is better than The Sky program. Check out the websites for Software Bisque and Starry Night to see if they have trial programs that they let you use free for about 1 month so you can determine what suits you.

Robert, thanks, I downloaded Astroplanner and will give it a try. Thank you.