I use Flickr and it's the best sharing site I've used (if you ignore people's feedback which is always inanely positive, unlikely on this forum where people aren't afraid to give a bit of constructive criticism). Also with Flickr you can post a small version of any photos and then easily add them to your post here. Don't know how easy that would be with your own site.

Depends how much time you have and how much love you have for creating websites - I have neither