as i said there is no free lunch
if you want to upload big file and want it to support hotlinking you have to pay ... or build your own server with gallery ... not really difficult buy it will suck up your bandwidth if your album is popular
Fotopic lets you have 250MB of storage and you can download the full-resolution file, give comments, view a slideshow or even download it as a PDF! It also gives you statistics on your photo album so you can see how many people visit it. Here is an album of a trip to Japan last year.