question about screen for HTPC

I am trying to spec out a MTPC. While looking at cases, I see some that have a touch screen.


I really like the screen, but I am not sure what the pupose of the screen is? My HTPC will be connected to a PJ, so I imagine that you can que stuff up and then launch PJ.


Anyone with a screen can tell me:


1) what kind of screen u have and where to get one

2) what do you use the screen for?


thanks,


Mike