Thanks, everyone, for your responses.
Bob,
I see how it is useful to have the datasets in short format (to save space and whatnot) and just include a scaling factor in there with it. But, let's say I want to export something to an outside stats program or to a graphing program (maybe just using the "write" button for the voxel I am intersted in), how do I access that scaling factor? Or does it automatically "scale it to a float by factor XXX" before outputing those numbers? (Or is that scaling only applied when I call up that filename to use in 3dcalc or some other program?)
Thanks again.