MM Cartridge

The top Grados don't have a user replaceable stylus

There are two critical parameters of the most important components in analog chain:

-tonearm mass
-cartridge compliance

If you know tonearm mass you have to choose a cartridge compliance accordingly.

*you can read here

P.S. Dynamic compliance must be stated at 10Hz in cu
If it was stated at 100Hz (for Japanese carts) simply multiply on 1.7 to convert to 10Hz before you will make any calculations

For new cartridges (in addition to what you have already mentioned), the upper end clearaudio MM's are also very good. If you're not afraid of purchasing used...
Grado Signature series
Empire 4000 DIII
Empire 2000 Z

If you have a month or so... Check out the HUGE MM thread Raul started here. There are a lot of old MM/MI carts that are really good.  

If you can still find one, the JICO stylus will make a shocking difference to your Pearl, and may be enough to keep you happy

Soundsmith , Vessel Cartridges , Goldring