Today is a very sad day for a lot of small developers as they can't submit their applications or plugins to the new Mac App Store as they don't meet the requirements.
I've been using a Wacom tablet with FCP since 2003 and yes I couldn't live without it now. I haven't got round to programming macros though so thankfully this video from Luminoir can show you the speed benefits by eliminating repetitive keystrokes. Make sure to watch in HD to see all the detail.
This is a library of user created presets for Apple's software Color. From coloruser.net. The presets listed here are stored in the .colorgrade format. It's a community of color accolytes so as well as allowing you to download for free, they also want you to upload your own color presets. You can recreate the 'magic hour', get that greenish Kodak 400 look or go for Film Noir. Lots of Canon 5d Mark II Presets available.