It would be cool to automatically send an email notification of new pictures when posted.

In conjunction to sending emails, to also be able to have people register to the site with their email (similar to the way a forum would) to collect the email address so that they don't have to be manually typed in by hand.

Also it would be nice if you can use network paths to save the files. I am going to use this on Windows Home Server, and to use the directories, you need to use the network path and not the path of the actual drive and folders. This is because of how WHS's Drive extender operates. When you run multiple drives on a WHS, it will migrate the files off the main drive and move them into the share.

Here is a little more example of what WHS does. When you save a file at \\server\photo, it originally stores the file at d:\shares\photos, but when drive extender "balances" the drives, it will move the actual file from d:\shares\photos to either d:\DE\shares\photos or onto one of the other drives that is not assigned a drive letter. It then replaces the file at d:\shares\photos with a tombstone file that has the same name, creation date, edit date and what not, and the apperance of the correct file size that is completely empty... meaning the file actually has no data in it. This is why you should access the shares from the network share and not the drive path as the file might be the tombstone file and it will not redirect it correctly the the actual file.