Hey everyone at MR, I'm on the edge of the mac world looking to step in as soon as the new ibooks release next week . I just have a couple of questions that I hope you kind souls will be able to help me out with. I have a Lexmark Z600 which works fine for me. I was wondering if this is compatible with Tiger. I did a search but got confused by what I found so I wanted to post again. Hope you don't mind. Also I have a few other random questions: 1. Does bluetooth reduce the battery hours of an ibook or its overall life? 2. Any tips to lengthen the life of my battery. I'm gonna be using it pretty often and I am aware of the callibrating thing when I first use it. But I wanna know over its lifetime, how I can help it out a bit? 3. For an ipod, should I format it for windows or mac. Another user on a post far away said its better to do it for windows since if you do it for mac then it won't work with windows. I am the only mac user in the family so I thought maybe I should do that. My question is are there any downsides for when I use it with my main machine (ibook...soon)? 4. Finally, I'm planning to buy office for mac soon with the awesome rebate offer they have and I was wondering if it would work okay on Tiger since its an older version. Thanks for all your help!