I am happy you canceled your idea with the opening of an image with this slow and complex java code.
I would be happy to get an gallery, following things I wish for it, and think they would be very usefull:
1. easy and fast using, the gallerys should be listet first, so you can choose an gallery
2. the preview pics which are shown on one page should be changeable (10 by page, 15....)
3. preview thumbnails should be shown in an div of the window, if you open one there are two good options (you choose which one, not the User). Let the pic show in the div, where the previews are, including a forward backward button, or photobar on bottom or next, better one, open the clicked pic in a new window, including the forward/backward oder photobar, vantages of this would be, that the pic uploader pretend how big the new window will be, with the dimension of his pic
4. right managemanet, single users/groups should be allowd, to make new gallerys and massupload pics...
5. for uploaded pics, the code should be do the preview pics by first clicking the gallery, don´t use imagemagick for this
That´s the things I wish for me, for a good gallery, hope you can use some of my ideas
Good work until then.