+1 on the Airtronics.. I have the RDS8000, as well as an SD10G, and the RDS8000 would suit a beginner for a very long time.. You may ask, "If you like the RDS8000 so well, then why do you also have an SD10G??" Answer, because I got a really good deal on it!!

also, the receivers are not all $70+ each.. you can get a 5 ch rx for around $50. basically, it seems that the Airtronics full range receivers are around $10 per channel, at least thats my observation!!

Craig..