I agree with Nicole - the AKG C3000 is a good mic. We have a Bluegrass band and use only the AKG, and no monitors - it works great, a very warm sound. If you really want omni, I have the Oktava MC012 which comes with 3 heads: directional, super cardioid, and omni. We used the Oktava before we got the AKG. The neat thing about the omni head was for practice - we all grouped around the mic with headphones! The Oktava will run you about $250 via MusiciansFriend.com.