For what my opinion's worth Squee, I say get the React. I've had mine for a few weeks now and it is *excellent*! It's lightweight and extremely comfortable, the feature list is just huge (and constantly getting bigger with the software updates), and you get the signal security that only FHDSS can offer. It's lightning-fast, and the telemetry is an absolute lifesaver sometimes. For example, when you're driving an experimental BL setup and you're not aware that the motor is overheating, if you have a temp sensor fitted (it'll support up to four) then it'll warn you and save your bacon.
I really can't say enough good things about it. There are some very minor niggles, but nothing that takes away from it. If you're interested, then I've written an in-depth review of it here:
http://www.rckingdom.co.uk/mam/index...d=214&Itemid=1.
Or course you can't go wrong with the Sensor either, but the React offers more future upgradeability (the Sensor's memory is already full), and has features that the Sensor doesn't at a lower price.
Anyway, that's my 2 pence.:027: