Stick with one laptop or one desktop--you won't have the time to continually transfer files between the two of them. As they say about college life: There are only three things you can do in college: study, party, and sleep. Unfortunately, you can really only do two of them. You don't want to add "synchronizing your computers" to that list.
Anyhow, I suggest you go with the laptop: portability is a real plus if you plan to work outside of your dorm room. Unless you have a single or are really anti-social, you won't get anything productive done in your dorm room.
As for the choice of laptop, that will depend on your needs. The 17-inch PB is way to big to be used in class, and will probably be a hassle to lug around. I personally have a 15-inch PB, and I think it's pretty portable: it doesn't weigh that much and it's powerful enough for tasks on the road (i.e. programming, word-processing, even some spreadsheet crunching). If you don't care too much for power or screen size and place a big premium on mobility, get the 12-inch TiBook or iBook.
Anyhow, I suggest you go with the laptop: portability is a real plus if you plan to work outside of your dorm room. Unless you have a single or are really anti-social, you won't get anything productive done in your dorm room.
As for the choice of laptop, that will depend on your needs. The 17-inch PB is way to big to be used in class, and will probably be a hassle to lug around. I personally have a 15-inch PB, and I think it's pretty portable: it doesn't weigh that much and it's powerful enough for tasks on the road (i.e. programming, word-processing, even some spreadsheet crunching). If you don't care too much for power or screen size and place a big premium on mobility, get the 12-inch TiBook or iBook.