My 12" iBook has taken over most duties from my PC. The screen is a bit smaller, I was using a 17" CRT at 1152x864, but usable enough for most tasks. I love the convenience of being able to take it where I want to in my house or elsewhere. I really wish I could somehow jam 240GB of storage space into this thing but soon I will get an external hard drive for it to make up for that. My PC mainly gets used for network storage, a print server, DVD burning, gaming, and can be used for TV-watching. But for stuff like email, web browsing, music listening, and other basic tasks the iBook is more than sufficient.