I think ET's exist, but they won't present themselves until we're ready. If we can't live with everyone on our own planet, how would we live with them? We'd most likely pose a threat to them. But I do hope that we make contact soon. I've used SETI before under a different email address, but I decided to start up again after I saw the link on John Ringo's site. I'm a big fan of him and his books.
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.