Brad May has been dealt to the Anaheim Ducks for G Michael Wall. Anaheim adds even more toughness (although May has no fighting majors this year mostly due to his surgically repaired shoulder). Colorado adds goaltending depth - as an organization they don't have a ton of options beyond Peter Budaj and Jose Theodore.
Speaking of guys involved in the Steve Moore incident, old friend Todd Bertuzzi has been traded to the Detroit Red Wings. Unfortunately, any thought of a spark to the rivalry might be premature. Colorado and the Wings play each other just one more time this season - this Sunday, in Detroit, and it doesn't sound like Bertuzzi will even be ready to play by then. He is an unrestricted free agent this summer.
Also, Colorado traded for former Avalanche enforcer Scott Parker from the San Jose Sharks for a 2008 6th round pick. Parker (traded a few years ago to the Sharks for a 5th round pick that became Brad Richardson) replaces - heck, upgrades - the toughness lost by trading away May. Parker is a free agent this summer. It's not a hugely important deal, but it's nice to have someone around to take some of the fighting pressure off of Ian Laperriere.