These are the guys that pretty much used to be Catch-22, right?
No. Tomas Kalnoky, the singer/writer for Streetlight Manifesto was in Catch 22 on one album (Keasbey Nights). He has since re-recorded the album with Streetlight. Catch 22, to the best of my knowledge, still exists. They are, however, inferior, due to the lack of Tomas Kalnoky.
Everything the man has been involved with is brilliant. If you like Streetlight, you should check out his first band Gimp (he was about 16!), and Bandits of the Acoustic Revolution.
I'm going to see Streetlight again in less than two weeks!