MyTunesRSS allows you to watch your videos or listen to music locally or via the internet with its browser. This program allows access to everything in iTunes and then streams it to wherever you are. There are other products that are similar but few allow videos and that is where iTunes RSS has the advantage. The file browser can also look in folders and look at media there as well. You can also listen to your music via RSS feeds on many devices like the Nintendo Wii or the Playstation Portable with the latest firmware version. The amount of things you can do is pretty impressive.
The program has a free trial and is $25 if you decide to buy. It work on Windows and Mac.