Beta Monks: How many spirit generators?

How many spirit generators have you been using at max level builds? I'm currently playing around with this build: http://us.battle.net/d3/en/calculator/monk#bYXd!a!aa but before that I was using Crippling Wave and Deadly Reach as my primary/secondary attacks. It was nice being able to have the Crippling debuff available while still having reach accessible when needed but I'm not convinced its worth taking up a valuable slot when I could have other utility abilities or attacks.

Feel free to toss in any additional builds that you've had a ton of fun with or have found particularly useful.