In the past few days, I've continued to play Crackdown for achievements. Here's what I've gotten since I've beaten the game.
Man, those driving races were a total bitch. The stunt markers are probably gonna be worse, since I have to be creative with those. Oh yeah, and then there's finding all the 500 agility and 300 hidden orbs. That's gonna be a bitch. It'd probably be easier just to start the game over to do those and make a checklist. And, uhh...oh yeah, I've got some co-op achievements to do, but I can't do those 'til Dillon gets back online. >=[
As for Gears, I only need one more COG tag before I get that particular achievement, and I'm also taking care of beating the game on Insane at the same time. I'm not even gonna bother with the online achievements for Gears, since I don't like the online mode.