Thriving in the coming game mechanics hype cycle
cykod.com
cykod.com
Details are here: http://vi.to/workshop/20100426/
My notes are here: http://vi.to/gmnotes
Between going through the exercise (especially with others doing it and then collaborating on additional iterations) and all of the reference material, coming up with compelling game mechanics and metagame mechanics should be doable for anyone.