Welcome to the board Butch!
Here's my pick for the RTR that are authorized....
Team Associated NTC3 plus RTR
OFNA CD3 PRO RTR
OFNA CD3 Sport RTR
Traxxas 4-TEC nitro RTR
As far as pro KITS go I would choose in the following order...
Mugen MTX 4 or HPI R40 ( HARA or 2004 )........ HPI parts are cheaper and easier to get... no additional hopups needed for any of these cars!
Kyosho RRR WCE...... top kyosho touring car with upgraded parts
Kyosho RRR..... top kyosho base model
Mugen MTX-3 prospec..... excellent older car to the MTX-4
Team Magic G4S...... new on the market... great value
If your not an expert with nitro motors you can't go wrong with the OS .12TZ 3 port turbo. Reliable, easy to tune, POWERFUL, and low priced ($180) from rc-toro.com
If you have some experience with nitro and wanna lighten your wallet and go maybe a little faster Novarossi is the ticket. Any newer 3 port Novarossi. Just make sure you get pilot shaft and slide carb. The best bang for the buck in the Novarossi department would be the RBConcepts V12 3 port turbo with SG crank ($219). Made by Novarossi to RB specs. Still a Novarossi either way.