I'm trying to close-mic my guitar amp (twin reverb) with my roland vs-880, but my mics are shitty nady throw away mics that were given to me. I play ambientish rock and the subtleties of my playing get dulled with them. I don't even think they are instument mics, as the guy who gave them to me recorded mostly drums. I'd like to get a decent mic for the price, preferably under 100 dollars. I'm a complete n00b about recording, so any help would be greatly appreciated.