Tuesday: Tonight, Iota hosts one prong of the WAMA Crosstown Jam for Flood Relief trident, a concert series taking place Tuesday and Wednesday to benefit the victims of Hurricane Katrina. While Jammin’ Java and Chick Hall’s Surf Club in Bladensburg are featuring buckets of bands, your buck goes furthest at Iota, where Laura Burhenn (pictured) and Gist stand out in the noteworthy crowd. $10. For those less charitably inclined, dirty speed-punk act The Twats take…