Systemdex IIx. .. need cartridge recommendation

I just purchased a Systemdek IIX turntable with a Profile tonearm. However, the TT had no cartridge. What cartridge would you recommend for this turntable? Also what mat would enhance the music?

Btw, my listening room is in the basement and has carpet over a concrete floor so footfalls are not a problem.

I listen to a lot of jangle pop, power pop, ethereal pop, post punk, college radio, be-bop jazz, and blues.

I am upgrading from a B&0 RX2 turntable with an MMC1 cartridge.

The rest of my system is as follows:
B&K ST-140 amp
Polk Audio Monitor 7 speakers
Onkyo Integra P-304 preamp
Superphon Revelation II preamp (modded with Black Gates) used with the turntable.

Thanks in advance.

John