I have a small digital audio workstation (a Zoom MRS 1044) that I use for recording my acoustic pop songs for demos. I presently use stage mikes (Shure 57/58) and a cheap Sony electret condenser. I actually get a decent sound, but I'm thinking I could improve by getting an inexpensive condenser mike (under $150--after all, the rest of my system's pretty modest). My recording room is not immune from the sound of the occasional car honk or flushing toilet. The mikes I presently use don't pick up these sounds at all, which is a plus, but I'm looking for some of the sensitivity of a condenser, but not to the point of having a problem with peripheral noise. Any suggestions?