2
yep just setup XOOPS or coppermine in it's own directory.
I use XCgal which is made from coppermine with all the same features and reccomend you take a look. I have over 40 albums running with heaps of images and it works sweet as a nut on 2.0.13.2 lots of guys posting pics from all around the world.
The best bit for you would be that using XCgal the whole CMS and Gallery would all link up giving your users alot more freedom.
good luck