Interior is next for me, I need a sound system! I'm still deciding on what seats to get and all that jazz. I managed to find a center console (not an 08+ console though) for $40, it's the black one with carbon fiber lid. It's in great shape. I'll either use it, or sell it - I'd like to redo the interior all black, with black/silver captain's chairs.
You're absolutely right, the truck is pretty quick with just a canned tune. 1st, 2nd, and 3rd will roast the tires if you don't back out of it. Ha! Brings a smile to my face every time... then I've got to buy new tires. That kinda sucks.