Some PC based Oscilloscope projects ...

[MAXPAYNE]

http://www.xs4all.nl/~jwasys/old/diy2.html

http://www.johann-glaser.at/projects/DSO/

http://www.chocbar.demon.co.uk/

http://www.geocities.com/lptscope/

http://alternatezone.com/electronics/dsoamk3.htm

http://home.planet.nl/~m.f.hajer/scope2k4.html

http://www.transmic.net/scope.htm

http://www.nbb.cornell.edu/neurobio/land/PROJECTS/VideoScope/

http://jonw0224.tripod.com/ppmscope.html

http://scopeonpc.tripod.com/index.htm

http://www.soundtechnology.com/LAB432.html (Please post a full vsn if u have!)

http://hacca.altervista.org/Detailed.htm

Also check EPE and Circuit Cellar August issue