I'm new in gasser also. I found out the hard way that Futaba recievers and Hitec digital servers are not a good combo. When you plug 2 hitec servos into a (Y) they will not function properly. Unplug one and all is well! You can also plug 2 hitec servos into a reversing (Y) and all is well. I bought 8 of Hitec 5645MG's recently and I'm having to pick and choose where I use them. The places that I was going to us 2 servos tied together with a Y I've ended up using 2 JR 4721. These work great.

Also, don't under power your model trying to save money. If it recommends 100cc go with 100cc and not 75cc, etc.

You can save some money buying off the RC Universe classifieds. You can find some good deals on RTF, just research the setups the models have and don't settle for something your not sure about. RESEARCH< RESEARCH< RESEARCH!!! Hind sight is 20/20

Hope I have helped some.