Disclaimer right up front: I'm not in the real estate biz, so I'll write this from the perspective of what I've observed and what might be useful. Some real real estate pro can come and fix this on his or her own blog, and it'll likely be better. Why would I ever let a simple thing like inexperience get in the way of sharing my opinion?
The first and most obvious thing I think the real estate world can (and should) be doing is buying video cameras and shooting their own walk-throughs. You don't have to be a pro. You do have to know how not to make something look horrible, but that comes with trial and error.
If you don't yet own a video camera, here are a few thoughts:
Most still cameras have a video feature, and that's nearly good enough.
The Flip camera is the easiest and often the least expensive video camera to use.
Kodak's new Zi8 (and related) models have more flexibility than the Flip, but are a bit more complicated as a trade-off.
Now, to actually do it, you have two options: Learn how to edit things easily in iMovie (Mac) or Windows Media Maker (PC), or pay someone to edit what you shoot. Benefits of the former are that you can edit when you need it and your time is all you pay. Benefits of the latter are that the editing pros are good at what they do, will save you time, and will know what to do next. The drawback of hiring someone is that it costs money and you have no control ...