My quick thoughts:
If you are welcome to tape your local bands, and have the venues OK, then perhaps you should look into an "open" taping rig (larger mics, more gear, etc.) rather than a "stealth" rig. I guess it depends on the bands, and venue and your tastes, but I've found over the years of trading and the few years of taping, that open rigs tend to produce better tapes than stealth tapes.
And if you want to make quick and easy matrix tapes, the Edirol UA5 (w/ DigiMod) allows you to input SBD and AUD, and output to a recorder. Many tapers use the UA5>Recorder combo to fantastic success (I used to run this).
Terry