Yes, there is a high end Shure cartridge still available as a P-mount. See it here: http://www.lpgear.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=LG&Product_Code=SHEC01P
The Ortofon OMP-10 (P for P-mount), is compatible with any of the OM-series sylii, all the way up to a Fineline Geiger OM 40 stylus. www.kabusa.com sells an integrated OMP 20, 30, or 40 here: http://www.kabusa.com/frameset.htm?/ortofon.htm
LPGear.com also has a $160 Audio Technica P-mount here: http://www.lpgear.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=LG&Product_Code=ATC08
As previously mentioned, the entire Grado Prestige series is available in P-mount all the way up to the Gold series.
The Ortofon OMP-10 (P for P-mount), is compatible with any of the OM-series sylii, all the way up to a Fineline Geiger OM 40 stylus. www.kabusa.com sells an integrated OMP 20, 30, or 40 here: http://www.kabusa.com/frameset.htm?/ortofon.htm
LPGear.com also has a $160 Audio Technica P-mount here: http://www.lpgear.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=LG&Product_Code=ATC08
As previously mentioned, the entire Grado Prestige series is available in P-mount all the way up to the Gold series.