Multimedia

[denise gant]

Hello All!!
I am working on a project that requires very specific features for running content on a scheduled basis. I know that Apple TV can accomplish this, but right now I'm struggling to find the equivalent in the PC world; so I thought I'd ask you if you might know of anything. Here is what I need:
I have two plasma screens that need to run a variety of multimedia consecutively, ppt, dvd, cd, docs, etc. I would also like to have the ability to time some of the content to run for, say, three hours at a clip or for the day before moving on to the next content. Any ideas?