if i was you, i would get a futaba 3pm 2.4 fasst system, its cheap(200$), reliable, and amazing. It has every feature you would need and can use digital servos, it can use analog servos when on ppm mode but when on hrs mode, it can only use digital. your other option would be the airtronics mx-3 fhss system, same things but the 2.4 ghz is slightly different than the fasst system from futaba, both are good.
pros
airtronics: 150$, different look
futaba: 200$, most reliable
cons
airtronics: different type of system, and is heavier
futaba: ugly, alittle more money.
this is my opinion.
hope this helps.
i do have a nice fm radio if you want to buy it. just an offer.