Optimum DC to TV Setup

[DCGAMER]

I have a few questions about the setup options I have on my TV. Your help will be greatly appreciated. I have a TV with both S-Video and Component hook ups. I have a Sega Dreamcast and was wondering if there were cables to take advantage of either one of these. If so which is better? Also on my stereo I have a optical out port on the back. Can I take advantage of this with my Dreamcast? Thanks for your time.