Alas, as it nears its 3rd birthday, I have to admit that my trusty sidekick, my Macbook Pro (late 2008, unibody) is beginning to feel its age. It has been through two OS upgrades (first to Snow Leopard, and lately to Lion) and a HD upgrade. Working on the third battery (I believe this was the last iteration that had a user replacable battery.
I am eyeballing either a 13″ Air, or the tried and true 15″ MBP. It will probably be a few months (say Q1 2012) but the day is coming.