Mobo connections for 3 SATA + 1 CD + 1 DVD

[sgs]

Will be using Asus P4C800-E Deluxe mobo, which has 2 SATA HD ports, 1 CD
internal audio connector and 1 AUX (whatever that means) internal audio
connector.

1. How do I connect 3 SATA drives (instead of only 2) to the mobo?
2. If I have both a CD-Rom drive and a DVD drive, how do I connect them to the
mobo's audio connector?

I suspect that the answers are not P4C800-E dependent, so request insights from
anyone with fairly new mobo, especially 875 series et al.

[Midknyte]

1. you would need to get an SATA PCI adapter card.

2. you don't need to connect the drives to the sound card input unless you are using analog. WMP and other software are all digital, so you probably won't need it.