Is there a low-cost, practical solution for microphone recording on the Sony MZ N510 MD recorder? I gather I need line-level signals, which most microphones don't provide, but I don't fancy paying vast amounts of money for a top rate bulky pre-amp. Ideally, there would be a plug-in self-powered stereo mic with built-in pre-amp, really cheap on E-Bay. Suggestions would be really appreciated, as mic recording was the reason I bought the thing in the first place! Cheers Bruce