🚀 go-pugleaf

>Are there
>any other things my family could use the sound STUFF for besides playing CD's
>and DOOM?

Off the top of my head, there are more and more applications out there that 
have digital sound for various reasons.  For instance, I think the latest 
version of Quicken has various experts giving advice on investing and so 
forth. Of course there are educational CD's and encyclopedias, etc, that have 
alot of digital sound to them. 

Internet phone: talk to people over the internet using a microphone plugged 
into your sound card, and a SLIP/PPP account.  I've tried it, it sounded 
suprisingly good.  Probably not all that useful or practical, but there it is.
Since you asked for examples.

Doom 2 :-)

Simpsons sounds coming out of your computer when you make a mistake :-)

But to tell the truth, the main use is probably games and music CD's.