Rick,

Tell you what. Any site you think can prevent me from capturing the images, without requiring some funky computer-compromising plugin or viewer to be installed(*), you send me the link and I'll send you the pictures. That includes your only-shows-full-size-when-mouse-hovers site; I can just read the JavaScript source code and get the URL for the images myself, piece of cake.

--Damien

(*) I qualify this because a few people have suggested that you only make your images available in a custom, proprietary format that requires a special browser plugin to view, and that plugin when it runs tries to disable a bunch of stuff on the user's system that might be used to copy the image. This is a really stupid approach, because (a) 90% of your visitors won't download the plugin, so they won't see your art, and (b) the plugin probably only works on Windows, and only in Internet Explorer, so you just blew off another 25% of your visitors, (c) requiring users to install system-crippling software to see your art is really presumptuous, and (d) you still can't prevent someone with a debugger from getting your artwork, although you sure as hell made it harder for anyone to see it, not just hackers.