Hi Guys and gals, So i have jumped on board and come from windows to mac after much consideration and drooling over the macbooks on the apple website. I have gone for the new unibody 2.66ghz with the now built in battery. I have scoured much of this forum and picked up loads of helpful hints and tips and the best apps to install. I do however have one major question that is worrying me. Obviously having spent a lot of money and with the battery being built in i want it to last as long as possible. So what is the best way to use the macbook? I have been letting it charge to full and then unplug it and let it drop right back down again before plugging it back in. Is this the right thing to do or should i just plug it in all the time? I have read that some who have left them plugged in all the time have ruined the battery but this is now a new type of battery so will it effect it in the same way? I know there are threads on batteries already but none on the new battery and the best way to run it. Also is it that viruses cant run on the mac or just that people don't bother cause there are more windows users. If the later is the case is it not a good idea to get some anti virus. Many thanks to those who get back to me.