Hi Terry,
Fantasy Grounds is amazing and you only need the 'Full Version' ($39) as a GM as long as the remote players have a 'Lite Version' ($24) - the only thing the 'Ultimate Version' allows you to do is have remote players who only have the 'demo' (or 'unregistered version') connect to you.
The RMC Ruleset is available ($40) there and automates dice rolls, combat resolution, table lookups - all excellent stuff!!! There's a user created RMFRP extension that's available and free to use if your weren't using RMC (but the extension requires the RMC Ruleset to work and it doesn't automate as much as the RMC Ruleset does). The RMU Ruleset is in development as well!!
Unfortunately it's not overly user friendly so you would need help setting it up and showing you the ropes but the RM community is extremely helpful at the Fantasy Grounds site (
http://www.fantasygrounds.com/forums/forumdisplay.php?f=65) and someone would be very happy to walk you through it via screen sharing (that would be Jeremy - he's great!).
Although Fantasy Grounds is for remote players to join, several users either use Fantasy Grounds as a combination of face to face and remote players or even for their completely face to face games - it greatly streamlines the process!