If you’re upgrading to Snow Leopard, (I’m not, since my G5 is now orphaned; Snow Leopard is Intel-only) be aware that the version of Flash bundled with 10.6 has known security holes and needs to be updated.
Personally, I’m just about done with Flash. What with the never-ending security holes, Adobe’s stubborn insistence on burying the privacy settings as deeply as possible (you have to go to Adobe’s website to change the privacy settings on your locally-installed copy of Flash), and the horrible, HORRIBLE performance on any non-Windows platform… Well, I just don’t need it.
Thanks for the heads up. Flash is evil, and so is Adobe, but sadly they’ve succeeded in their campaign to pollute the internet with Flash, making using it difficult without their player.