Unless you have the preamp to go with MC, try the Ortofon 2m Black. I'm using this on my p3-24 with the TTPSU. This is a very nice MM Cart, with same shibata stylus they put on their jubilee cart (and costs a LOT more). Mounts perfect on the rega arm with a 2mm spacer.
Cartridges for Rega P5, RB700
Looking to trade up next year, have been using Exact 2. Looking to spend around 1,000 ish.