Conduit to your display location is the MOST important thing you can do. It allows you to run whatever you need after things are all done.
Otherwise, I typically recommend that you run a power extender so you can put your display on the same power conditioner as the rest of your gear, as well as one component, one composite, one HDMI, and one cat-5 run of cabling.
The conduit is strictly a 'future proofing' option.
Don't forget to properly wire for your subwoofer - which means RG6 type cabling to the subwoofer location, and put a power outlet right next to it.