Given the quality of the rest of your system, it makes sense to invest in a good quality TT / tonearm / cartridge combo. For the money, I don't think you can beat the VPI Scoutmaster, which comes equipped with the JMW-9 unipivot tonearm. The TT, with tonearm, costs $2400 (retail), but if you are comfortable spending a bit more, then you should seriously consider adding the clamping ring (another $600, but well worth the money).
Some good moderately-priced cartridge choices include the Shelter 501, Grado Sonata, Sumiko Blackbird, and DynaVector Diamond 17D (although this is a very low output MC model, so you might need a step-up transformer).
Some good moderately-priced cartridge choices include the Shelter 501, Grado Sonata, Sumiko Blackbird, and DynaVector Diamond 17D (although this is a very low output MC model, so you might need a step-up transformer).