So, you're attending film school somewhere? If so, check with an instructor to see if student projects are being shot in SD or HD. If in SD, the DVX100 is a very versitile, professional camcorder. Ive heard of people shooting on it, then having a lab convert the video to HD (not the same as shooting in HD, but not too bad).
I recently participated in a video contest (San Diego 48 Hour Film Project), in which everyone was encouraged to shoot wide-screen, even if shooting SD. I did so with my Panasonic DVC30 (kind of a little brother of the DVX100), and was surprised how good it looked on the big screen in the theater. All SD entries had been somehow "converted" to HD, and the theater had a Sony 4K projector. Of course, the few entries that were shot in HD looked amazing.
If you're going HD, you might consider the Sony A1U, their least expensive true professional camcorder.
Have fun with whatever you choose! :)
Ken Hull