Kobe Bryant had the ability to become an unrestricted free agent this off-season, and while it was basically never talked about because no one believed he'd actually leave the Lakers, there was always some small sliver of a chance he could take up someone's cap space this off-season.
Kobe signed a monster extension which picks up his option for 2010/11 and guarantees him roughly 90 million more over the three extension years from 2011/12-2013/14. It's an interesting spot the Lakers are in, because honestly, how could you not give Kobe the extension.
On the other hand, I can almost guarantee he'll be a bad contract in the final couple years of that deal where he's making 30 and 32 million. Especially when the new CBA rolls around, and Kobe takes up 60-70% of the salary cap at age 34/35. He won't be a bad contract in the sense that he'll still be a very good player most likely, but you'll be paying 32 million for a guy who's probably no longer a top five player in the league.
With the deal Kobe will become the second player (Jordan being the other) to break the 30 million per season barrier with his salary, and he also becomes the present leader in career earnings in NBA history (assuming every player is paid out what they currently have guaranteed and don't get another contract though Shaq/Garnett are in the ballpark if either can get another big money deal).
Now the Bulls didn't have enough to bid on Bryant anyway, so it obviously doesn't really effect the Bulls bidding plans (or anyone's really, in that no one believed he'd leave LA). As for the Lakers, look at Celtics now, and that's the Lakers in another 1-2 seasons.