Hi, I've just bought a new Macbook (white), upgraded to 4GB of RAM. I've ALWAYS been a Windows person, and this is really my first home computer Mac experience. Can you give me any advice? Things I should look out for that are different? Should I install virus software? What free applications should I get which are essential? Do I defragment? Registry clean? I think I'll also use Windows in bootcamp for some things (games), but I'll wait until Apple releases a Windows 7 supported version. I've heard there might be overheating issues if I run Windows on a Macbook? Is this true? Also, can I access files on the Windows partition from my Mac? Should I buy iWork or MS Office Mac? I hear Office Mac is fairly buggy, so I'm leaning towards iWork. Its also cheaper. Wow, lots of questions!! Thanks for your help!