Hmm well its an odd question... if I had more space I think I would but I guess not. Really I guess I should have made the question more clear, it was really what would be the benefits and ^ gave me my answer lol
Btw darque do you know a good syncing program for home networking? My "home group" doesn't work on my network for some reason... never has.. I just want to sync my music, videos, and pictures over wifi. Thanks a ton.
There's no really good sync application that will ensure your files are the same on two different computers. You can try using synctoy. I've used it before and it works well, but it's not automatic so you'll have to manually start the process when you want to sync your files.
If you are sharing folders between one Windows 7 computer and another (your carpc), on the carpc you can right click on one of the shared folders and select "always available offline", which is supposed to keep files updated. I haven't tried that myself, but it might do what you want.