record MAIN on computer? help please

hey you guys.

i was wondering if there was a record in feature on my computer, or in a daw, so i could take sounds or songs that my computermakes, like, clicks, or banner add noises, stuff from youtube, stuff like that, that i could record in on my computer without going trhough the headphone jack and hooking it up to my mpc (500).
is this possible?
i use acid pro 5 and soundforge, and i have the demo fl 7 if thats any help.

any help would be greatly apprecciated!
its bothersome to go get my mpc and hook it up to my computer whenever i want to sample a sound it makes.

thanks again!

no one knows if its possible?

alright, thanks lampdog

man, i still cant figure that out.

do you know what it would even be called in soundforge 6. or acid 5?

my comupters thingi doesnt have it by the clock...