The guitarist in my band just got an Audio 2000 setup. He had never done in ears before, so I was interested in seeing what he thought. After our gig last night he said he recommended them, but did mention the belt pack seemed cheap. I've been using wired in ears, but last night's stage spaghetti clinched it. I'm on the fence about the Audio 2000. Maybe get a mobile phone holster/case to clip on your belt and put the pack in that.
I'm also going to check with GuitarCenter and see what they have used, since a new Shure or AT is out of my price range. GC has their ProCoverage insurance you can add to used purchases.