I'm fairly certain that anybody actually reading this blog and is able to go to this is already planning on going, but in the odd case that you are not I would highly recommend you check out CUSEC 2010 if you are at all interested in software development. I've been going for the last few years and it has been quite interesting each time. They've always had some great speakers including Tim Bray, Richard Stallman, Joey Devilla and Zed Shaw who usually give quite informative and inspiring talks.
This year the lineup is equally interesting, with folks like Reg Braithwaite and Matt Knox (guy who wrote some adware in Scheme, read article here).
So if you're interested in this kind of thing, are within reasonable travel distance from Montreal, and can handle the Canadian winter, feel free to come on out this January. The tickets are only $60 for students or $150 for non-students, which is ridiculously cheap when it comes to conferences. Plus Montreal is pretty sweet, so you'd definitely be having a good time.