I've been using both for a couple of months now. Photoshop CS3 runs a little faster on my Intel Mac than CS2. Plus you can have different preset workspaces for if you work in Web and Print. And the new version of Bridge is by far the best version yet. Much faster than previous versions and more room to customize.
And Final Cut S2 finally utilizes the dual core processor, so rendering is almost twice as fast (if you're using an Intel).
Both good upgrades IMO.
