So it's time to buy a new PowerBook. Soon, I'll be handing in the one I've been using on company time and I've gotten far too used to sitting on the couch to get work done, wirelessly, as well as a few upcoming trips.

And now I'm caught in that eternal dilemma: when to pull the trigger when buying a new system. I see that there's a MacWorld conference coming up in early January, and my instincts tell me there'll be an update to the PowerBook line.

I hate this game. Buy now, and then a week later there's a whole new line -- for less money. It happens to me every time. Every time. So what's your strategy? Don't look back? Wait and see?