So they have to exist online somewhere else first? Sorry for hijacking the thread but I'd like to know! Also I make things out of wood for a living so my IT skills aren't up to scratch!
Having run a very successful forum for many years, i know the costs of hosting large files like pictures on your own site is astronomical. Unless you beef up your hosting significantly, it can also slow the website down.
Hence the reason for needing to store the file on a site such as photobucket, though i recommend imgur.