Join Apple Family

It's time to join Apple Family. Since I need a mac system to do my project, I bought a powerbook yesterday. Now, I'm a member of Apple Family. I first started using mac was two years ago when I took 320 IMM course at RIT. I was not so familiar with mac at that time, but it was not that difficult to use and understand. Everytime I use mac, I learned a little bit. I don't say that I am really good at using mac, but I feel confortable to use it now. These two days, I've been 'playing' around my powerbook, and I really like the system. Ha... I can use Windows, Linux, and Mac anytime now. Yeah!
Oh...one thing that is worthy to be mentioned is the widgets in the new OS X Tiger. I would like to know how to develop my own widgets. Here is an article about developing widgets: http://developer.apple.com/macosx/dashboard.html