I go away to college next year, and as a gift, my parents have agreed to buy me a computer. The problem is, I don't really know where to start. What are the benefits of having a laptop computer as opposed to a PC? And which model should I buy, and why? And also, which accessories should I buy?? Cost isn't really an issue, but if possible, I don't it want to be outrageously expensive. Thank you so much for your help!