Great job, definitely better than many others i've seen before.
Aside from Richard's suggestion, i would recommend to match the nav bar with your logo design. Not so much in color, the yellow is fine, but in terms of effects. Get that web 2.0 bevel in form of buttons on the nav bar as well to round off the overall impression of your site. It's only a minor change in appearance, but could contribute to the overall perception.
Multi upload is a great idea, public gallery as well.
Nicely done!
M.