Contact Hobbypeople.net, they're having a sale on their RCM trainer starting on the 26th (Nov.) for $69.00. This may be for "in store" only, however, it doesn't hurt to ask.
I have the Lanier Explorer, that I paid $79 for at Tower Hobbies.
You have many choices, eh?
If you are just learning, stick with the 40 size trainers, and buy yourself a good 46 BB motor.
Gary