You can always go this route:

http://imageevent.com/packages.jsp

Not free, but you get what you pay for. 1500 images, 6 different auto sizes, option to load original size, documents, videos..., direct hot-linking, no pop-ups.

It also has the capability to disable the right-click "save-as" option for any of your pictures.

$24.95/year = $0.0684 / day

Not bad at all