For rent is the Devin Graham Signature series stabilizer by glidecam. If you haven't had the chance to use it yet, you're in for a pleasant surprise. It's a huge step up from the HD4000. It can operate in underslung mode, easier to balance on the fly and it's a lot lighter. Comes with carrying case.
I also rent out a VEST and ARM (Glidecam x-10), please see my other listing if you're interested:
2 to 12 lb Load Capacity
Position-Adjustable 3-Axis Gimbal
Quick-Release Sliding Camera P