There is the old SBLive! Value
It has Line Out Front/Rear, Line in and Mic in.
The newer Live! Value is the same card featured in the SBLive! Platinum, X-Gamer and MP3+ I believe, but it come with no software at all, and of course no live drive, though it does have the connector for it.
<< Theoretically, if I wanted to use the digital out of my DVD player, I could run a wire from the digital out to those solder points, correct? >>
You could yes, though it would not do much for you.
The 2pin internal S/P DIF connection is for CD Digital Audio only. Your DVD player sends all audio (in digital form) across the IDE and PCI busses. The presense of this 2pin S/P DIF connection has exactly no effect on the audio of a DVD.
The only thing this cord does is lets you transfer audio from an audio CD in digital form, so you use a DAC on the soundcard (or possibly speakers if you use digital out on the soundcard) instead of the DAC in the CDRom drive. So it will probably help your CD-Audio quailty a bit, but has absolutely no effect on DVD audio.