Hi there Beach Cruise. I am new to this, so please excuse me if I seem a little wet behind the old ears.
When you mean "dynamically loading scrolling gallery" do you mean something like this?
http://www.attik.com/main.html
navigate to Construct and then to Portfolio, then click on one of the clients in the lower list.
In fact, this is the reason that I've just registered with this forum. I want to create a site not that dissimilar to this one. Including a scrolling gallery.
Hope this is relevant.