Here are a couple of "cloud" applications that I have found extremely useful in sharing files on multiple computers. They have helped me get a lot more organized. Maybe they can help you get there too.
Sync your files online and across computers with @Dropbox. 2GB account is free! Dropbox
SugarSync syncs your files from your personal computer to SugarSync’s secure computers on the internet (sometimes called the “cloud”). Sugar Sync