Hello! I am going to college this fall and i am stuck between these two models. I have never tried OS X in my entire life and am willing to try out leopard. I have had an on-off relationship with vista, though, i can say that most problems were caused by the hardware (HP). So, i don't mind using vista if its on a xps system (considered a premium system right?). However, i know i will enjoy a painless and better life with the MAC OS X. The problem is, since i am ECE major, i will probably be using for classwork and all that, and stuff like ms office is much better suited for vista than OS X. Another thing is the LED screen of the xps, it is much more appealing than the screen of the macbook. I will carry my laptop to and fro for class, so i am wondering if there is a great difference in weight between them? I don't really care about the battery life(atleast 2.5 hrs) since i will be living in a dorm close to college where i can just connect it to a power supply. I kind of like the present BTS promotion that apple has, but , its like I am being used as a tool to clear old stock(though i do love the current ipod touch and don't have an ipod of my own) when better products will be introduced later. I will be happy with a shuffle! Also, there is an apple store nearby, so in case something goes wrong with my laptop, i can go there and get it fixed. Don't know much about the dell warranty, but i think i need to have it shipped or something in case something goes wrong. I am also planning to keep the laptop for my 4 years at university so i am looking for the one which is more durable, i don't mean dropping it off a two storey building or rolling a car over it, but the damage which comes from general use (soft knocks off walls, or short drops, keys not fall off keyboard etc.) Also, money is no issue as long as it does not cross the $2000 barrier. Thanks if advance for your opinions!