You didn't say if this was for thumbs or text, but if for text, see sig for Gallery Admin. You really can not get more flexible. You can also use it to rotate 404s, exits, anything...
You can link to a category with a generic "Amateur Gallery" type link or use the template feature to build pages with descriptions. You can weigh galleries / links so better converting ones get hit first and administration is a breeze. Works no problem with any trade script as you can output encoded URLs in the templates.
Can be used on virtually unlimited domains on a server (more servers if you know that php is your friend).
