I'd be up for this...though it'd have to occur on a "good" month when I had time to commit in order for me to participate.
Have you put any thought into how folks would be paired up? Would members make their own partnerships or would they be assigned? Either way might be interesting. I think the experienced-novice pairing idea is a good one...though I wouldn't mind seeing the combined results of a couple of the forum "greats"!