Best time to buy?

Just wondering what time is the best time to buy an iBook or Powerbook? Ie when are there the best promotions? X-mas? Just before school starts?

Also there is a very high chance that Apple will be releasing a new iBook (according to macrumors or something), anybody know anything?

http://buyersguide.macrumors.com has a great resource. This will help

The best time to buy your Mac is when you really want it or need it. :black: