Turntable help

I'm looking to buy a turntable. My last one served me well for years but the cartridge died and Its time. My last turntable was a B&O RX2 with a mmc4. I'm thinking of a used LP12 1000-1600 range. New Clearaudio emotion with a good cartage. VPI scout used. Or a new Rega P3. Any suggestions on the way to go.? Save more money, etc. My record collection is about 8' of Bluegrass/acoustic/irish recordings. 8' Rock/5 star albums. 6" of jazz 6" classical. My tastes are all over the place but good reproduction of acoustic instruments & voice is most important. I have a small but growing collection of 78s. I need to address both. (33/78) Maybe something I can convert when I upgrade. Or should I consider 2 armed units. Amps are Adcom GFA 545 & GFP 555.
Thanx David