Guys -- you totally made my day! It's definitely not too late. Here's the final list:

eduardomolina
keeds
KWhitmore
Mark Fisher
mooseontheloose
Paul Cocklin
Pete H
Robk331
rst
Shangeye
sly
thebanana
thefizz
Thomas Bertilsson
Travis Nunn
trotkiller

That makes 16 even, with 4 people in each group.

I'll do the groups within the next hour or so and let you all know who'll you'll be exchangin' with.