I am going to have to throw my opinon on this........
My choice, 
Used Panasonic DVX100.....thats the 24 fps one mentioned earlier.
With the intro of the DVX100a, now everyone, including me, is unloading the DVX100, for the "a" model, b/c they fixed the bugs.  I have seen the DVX100 going for just a hair over 2K....of course you have to look...but certainly will blow away all other cameras under 4K.
I would honestly suggest just saving, stealing, borrowing the money and getting the 100....simply based upon the fact that no sense in buy a ok camera, if your going to use it, might as well get something you can use again, and again....and will be able to perform up to par.
Many options would force my choice for this camera, even though its a few hundred over budget.  First and foremost, XLR mic inputs. Most other cameras...with the exception of XL1, PD150.....dont have these, you can get the converters....for about 200 bucks, but still.  Sound is very important, even if this shoot is MOS, at some point you will want to shoot with sound, and what then, buy the box, or a new camera.
Second, the DVX100 is by far best picture/color/controls quality I have seen.  I have 3 PD-150's, and I have used them side by side, on a split screen on a 13' studio monitor, the result is unbelievable.  I mean to defend sony though, the PD-150 was great for a while.
Third, its a real buyers market on the 100, non a, b/c the "a" is all the rage right now, and people are selling them off to purchase the "a"
My friend just got a 100 non a, with 3 lenses, (1 being a $600 anamorphic lens)  A matte box, zoom/focus controler, and it only had 15 drum hours on it....He picked it up for 2800....but add up the extras which totaled 1500....so he would have payed about 2200 without the stuff. Makes me sad thinking of depreciation....
Nothing will look better than a DVX100a with a person that knows how to use it.  It is literally all over the industry right now, cheap and work well, cant beat that.  
Anyhow...good luck.  Remeber, like everything else in life you get what you pay for.  Borrow some money from a friend, parent, spouse whatever, get the damn DVX100....