The Steadicam JR works great with the VX-1000, and that's about the heaviest camera you'd want to put on it (with extra counterweights. The 900 is under 4 lbs., right? Either way, practically speaking, you'll need good arm and shoulder strength the use it smoothly.(posted 9152 days ago)Watch for the JR price to drop now that the new-for-1999 DV-steadicam is out. Also, more used JRs may appear (I just sold mine this week for $300--sorry!).
The new dv)steadicam was specifically designed FOR the heavier cameras like the Canon XL-1 and the VX-1000. I very recently bought the whole rig, including the arm/ vest to help distribute the weight (and allow for longer shooting days--just what we need, right?!). It's a wonderful combo, if a little pricey at $2K.