Im thinking abt buying a laptop. Have never owned one in past at all so just now learning abt them. I really do NOT want a "desktop replacement" in a laptop.... even tho if I by a laptop it will ultimately be used as a desktop most of the time. However.... I still do want the ability to travel with it easily if needed. Having said all that....Im thinking abt the 600M. But what I need to know is if the 600M is considered an ultra portable? If not... which Dell laptop model IS considered an ultra portable? Thanks n advance!