Go get em while they’re hot. Your favourite Adobe tools are now available as free 30 day trials. I’ve already had a look at Flash CS3 and the interface improvements alone make it worth your while, not to mention the hugely improved drawing and illustrator import capabilities.
To be a bit more critical: Flash CS3 still cannot handle opacity masks and complex vector objects you create in Illustrator (NOTE: I tried importing an Illustrator CS2 file). It will still recommend you import them as bitmaps to preserve appearance, but at least it it warns you about it and allows you to selectively turn those layers on and off that are incompatible.