storing music, surfing the web, typing/saving documents. I don't play online games or anything like that
The main disadvantage about a laptop is that you cant change out any hardware such as hard drive, RAM, video card, sound card, etc. If you do get a laptop, get one with big hard drive for all your music, at least 80 GB, or you could always buy an external HD. They now have hard drives in the TB (terabytes) capacity, which is equavalent to 1000 GB.