Have a backup
I am looking forward to the surprises at MacWorld like many, but they may not have what you are lookng for with some specific upgrades. Since you are interested in a MacBook Pro, my suggestion is to get a low end MacBook for now if you really need one for email and general tasks. Amazon has one for $1100 and there's no tax.
Later, when the MacBook Pro comes out and rumors have said that a Blu-ray drive may be a very good possibility for an option. This will cost you much more than a regular MacBook as you probably already know. And you never know how long it will be ready for shipping.
So, if you decide to get the MacBook and later see a great MacBook Pro, you may want to get that, also. You now have a great backup in case either computer needs to be repaired and is will be gone for a period of time. I have just had my MacBook hard drive replaced through Applecare and after hanging up the phone, it was back with me in 3 days.

I use .Mac to sync my Macs and the new Leopard can sync email, datebook, address book, computer settings, even dock settings now.
Whatever you do, have fun.
P.S. If the MacBook Pro comes out with the Blu-ray drive, I guess I will then have something really special to look forward in getting very soon.
