Considering your sonic priorities, equipment and budget, why restrict yourself to MC's? There are probably dozens of MM's that provide the sound you're after for less money, and with no Grado hum (or dance) issues. Why go looking for trouble at 2-3 times the cost?
Check out Raul's lengthy thread on MM vs. MC and ask the people there (including Raul, especially). I'll bet they'd have good recommendations.
Check out Raul's lengthy thread on MM vs. MC and ask the people there (including Raul, especially). I'll bet they'd have good recommendations.