I got myself a Dell Inspiron 4000 for college and it failed on me after about a year of use. The hard drive would usually refuse to boot into windows, and if I did get into windows it wouldn't be able to run any programs. I could navigate the start menu, but as soon as I tried to open anything it would just sit there and do nothing. One of the reasons I had invested in Dell was because of their apparently great customer service, but since I had an 'on-site' warranty, they wanted me to diagnose the problem before they sent any technicians/parts my way. Since I couldn't run any proggies in windows, it was impossible to diagnose and on at least 3 occasions I sat talking to the help desk for over an hour and made no progress.
Sorry to hear you bought a Dell...I think I would get an IBM if I were going to get another laptop. I knew someone who had one and it still ran pretty well 3 years after he got it...