Over at Macworld, Glenn Fleishman recounts what it was like to upgrade to Lion at an Apple Store, something that people without sufficient bandwidth might consider doing. The moral of the story? Bring an iPad or a book and plan to spend a few hours at the task. follow link
View Extra Battery Details in Snow Leopard
In Snow Leopard, Option-click the Battery icon in the menu bar to show the battery's current condition - Normal is good. Other messages might read Replace Soon, Replace Now, Check Battery, or Service Battery. Choosing the message opens a Mac Help document with more information.
Upgrading to Lion at an Apple Store
Check out the Take Control ebooks that expand on the topic in this article: