I've been using one of these
for about 10 years now. It's light, hard
wearing and folds flat to about 40cm long. I also invested in a Sennheiser e606
which can be dangled against the front of your
amp (stops you needing a mic on a stand if you're short of space). The sound guys I've
come across tended to like the 606's sound and they'll probably appreciate your attempts
to cut down your own onstage noise.