Something that I would find useful would be the ability to build and run custom reports from the web interface. Maybe even with the option to save it. For example each of our departments has its own OU in AD and maybe I want to run a software report that gives me an install count of all the versions of Microsoft Office for just one OU. It could be a series of configured drop downs to pick from.
I know you can build custom reports like that from the administration page and have them displayed on the web interface. I'm just beginning to learn how to do that. Something on the website might make it easier to create and run a quick onetime report.