OK, for people like me whose work blocks downloads, this would be a WICKED invention! Get this:
A service, where you register, and instead of a picture host like Flickr or file host like Mediafire that require you to upload from your harddrive, make a file host that lets you pick a URL for a download on the web and store it on a server for you, to download later on any PC that has internet access!
You could apply the current "if you want unlimited speed/space, you have to pay" business model, and you;d be RICH!
What do you think?