OK, since you are going to be using this camera for ghost hunting (I kinda figured that you would be), you might want to look into some remote control software. With that, you can do a bunch of things that the camera alone cannot such as:
- Use your lappy as a huge viewfinder/screen.
- Take an unlimited number of burst mode pictures and have them all saved on your HD as fast as the USB or Firewire cable can transfer them.
- Image stacking and filtering to either add or subtract the differences from frame to frame
Here is the first link that I found on google for one that will probably work with the camera that you linked us to.
http://www.breezesys.com/DSLRRemotePro/index.htm
There are other proggies out there and you may want to look at a few of them before you buy one. Check the ads in astronomy magazines to find other proggies that would work for you.
Also, since you are interested in novel (and horrendously expensive) ways to make images, you may want to consider not only ir cameras but UWB cameras as well.
Basically, they were developed for special forces soldiers and they use low power radio wave to make images. The main advantage is that they can see through solid objects. However, since they make images that are not visible to the naked eye, who knows but you might find more stuff that other ghost hunters would miss out on.
I could not find a good link for one but my brother is a captain at the local fire department and I believe that he has one. I will drop him an email and see if he knows where to get one.