Anyone got any links to any free software image captures from a webacam?

I know there is a load out there but not exactly what I am after

I would like it to ...

- Take pictures and save to local location on actual pc hardrive every interval
- NOT replace the file before but save in intervals so you have a collection of images over a period of time

tryed conquer cam ??

web cam xp

gqcam for *nix folk is nice and simple.