Sunday, January 15th, is the last day on which you can obtain the lower early-bird registration price. The cost of registration will be going up on Monday; I'm quite sure that the early bird period will not be extended again.
Another reminder: if you're coming to PyCon and staying in the conference hotel, you must reserve your hotel rooms before February 1st in order to get the lower conference rate; if you reserve after the 1st, you'll be stuck paying the hotel's standard room rate. Go to http://us.pycon.org/Addison/Hotels for hotel information and a link to the reservation page for PyCon.
A.M. Kuchling firstname.lastname@example.org Chair, PyCon 2006 http://us.pycon.org