I'll second (or third?) the vote for the RT series. I have both an RT650 and an RT450 and they're both fine guitars. Viper necks feel great to me. The only disadvantage is the lack of the AANJ. As Jono said, other good choices are the RV470 or SV470 which both had TZ tremelos, AANJ neck joints, HSH pickups, and Viper necks. The SV is mahogany and the RV is alder (with a gravure top). But both of those have 22-fret necks and since you mentioned RG's maybe you're after 24-fretters. I was really hot for vintage-trem Ibanez awhile back and I picked up pretty much all of them. The ones mentioned above were among the best I found. Good luck!