Xbox 360 and Apple 20" Cinema Display

I think you answered your own question. It should work fine as long as you get an adapter cable. The Cinema displays only support DVI in, not that you'd want to go component or something like that just so you wouldn't have to buy the adapter cable.

The sound, I think, you'd just need to hook up the sound portion of the component cables to your PC speakers or audio system since the Cinema displays don't have speakers.

EDIT: Also, the 20" Cinema Display doesn't support HD. So you may want to consider getting the 23"... although honestly, I think you may be able to get better screens for less money from just about any other brand. x_x;;

Jam it back in, in the dark.

the component audio input are just standard red/white jacks, like any other audio connection. so it should work with just about any type of speaker/sub setup. Logitech is a good brand, can get a nice set for under $50.

There's nowhere I can't reach.

Originally Posted by guyinrubbersuit

Will something like that really degrade the sound? Or will it just come out in a mono quality?

Simply put, yes. Condensing 2.1 channel signal into headphone-jack style connection is going to cut out a lot of the cool audio effects of your games.

It's not too expensive to get a decent set of PC speakers that come with a sub.

Here's a nice set for only $35.

This thing is sticky, and I don't like it. I don't appreciate it.