OK, looks like this is starting to wrap up as Hafner is the only open bidding left. So I'll throw this out there for your input, and will edit and add more if people bring topics up:
BEST Signing of 2008
WORST Signing of 2008
What TEAM did the best overall in free agency
What TEAM did the worst overall in free agency (other than the obvious where a team did no bidding at all
Last two may be kinda hard as you probably won't look all of each team's deals, so maybe just a chance to brag on yourself or mock a friend/enemy.