Phono preamp/cartridge recommendations


I recently purchased an entry level Music Hall 2.2 turntable with the Music Hall Magic 2 cartridge. I also purchased the Project Phono Box MM Phono Pre-Amp. It really doesn't sound very good. What quality upgrades could I make with a budget of 600 to 700 dollars. I appreciate the input. Thanks!
My system includes:
Zu Omen's
NuForce STA-200
Schiit Saga
Musical Fidelity V-90 DAC
Rotel RCD 1072
MacBook Air

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I would split the money 50/50 on a good used cartridge and a used phono preamp. If you do your research you should be able to land some decent gear.
This is superb phono stage for MM cartridges, also nice for LOMC.
http://www.customanalogue.com/jlti_phono_stage.htm 

shipping included in the price:
AUD 1490 = USD 1070 for the latest mk5, i think it's great price 

I have previous version without that special PSU, the price for presious version is about $750 (my version is modified by the manufacturer to use higher loading for MM, i normally use 100k Ohm for MM)