Diving into Flex; Ryan Stewart Still In Shock

Over the last year, I've had many conversations about Flex with the likes of Ryan Stewart and Rob Gonda. Now these are two guys that I REALLY respect and because of that, I've decided to take a serious look at Flex 2.
I don't have anything specific to build at the moment but I want to determine where I can fit it into future projects. The fact that ScrapBlog used it with much success really helped convince me that Flex is a great RIA platform.
I'm certainly not stopping my Ajax work as I think Ajax, JavaScript & DOM manipulation is still EXTREMELY important in building engaging web applications but I do want to explore additional options that will let me provide more of the client/server functionality that I used to build with PowerBuilder.
Wish me luck!