I do believe that there is other life either in this universe or elsewhere. I also believe that this life need not be oxygen breathing carbon based beings. (watched too many sci-fi films)
Transmitting a beacon is a good idea, but given the distances traveled we would never see the result in 'our lifetime'
Participating in the SETI@home program is just my small contribution towards finding intelligent life.
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.