If you have read some of the recent security scares surrounding Internet Explorer and are at all concerned about continuing to use this browser, then check out Browse Happy, the lastest initiative to come out of the Web Standards Project.
No deep technical discussions here, just some case studies of people who have switched to different browsers, and information about the problems faced by Internet Explorer users, and how switching to a different browser can be simple, free, and save you a lot of problems in the long run.