I just got a PhD in astrophysics together with a job in a research institute. A working computer comes with that job, so my old personal laptop can be used on the SETI project:-)
Sometimes I wonder who contributes more to science, me or my laptop...
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.