One thing to consider is that the two radios that have been suggested are meant to be used with AA batteries. If you fly much that will become an ongoing expense. You can add a NiCd pack to them just fine, but then that's another $30-$40 added to the cost of the radio. The DX7 comes with a NiCd, as does the RDS8000 by Airtronics and (I think) the Hitec Optic 6. So the lower cost radios aren't as big a bargain as they seem to be on the surface of it.