Nifty lookin new P2P... thingbob FolderShare
It lets you upload your files to a "library" and people can browse them from anywhere. You can let friends have an admin status of sorts to add and delete files from your library. It almost seems like a webserver; you can upload whatever you want and have it avaliable to you at all times.
It seems kinda shifty at the moment being that there's no size limit, but I'm going to give it a go.
the artist formerly known as duff-man