I run SETI@home because I have to have my computer running 24/7 therefore why not do something usefull. I do have one suggestion: Upgrade the software to take advantage of dual processors.
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.