If you demand top of the line performance with upgradability, make sure it uses Turion 64 or Athlon 64. Turion gets battery life however. The Pentium M doesn't support 64-bit and the Pentium 4 gets too hot (140F on the surface) and sucks too much batery. I like Acer.
If that's too much:
Just DO NOT GET A DELL. YOU WILL HAVE PROBLEMS.
I am going off to college and I am looking into getting a laptop computer to take with me. I am becoming overwhelmed with the jargon that comes along with shopping for a notebook computer and I have gotten to the point where I am completely confused as to what computer would suit me best. I want something that is top-of-the-line, reasonably priced, with all the bells and whistles, won't crash on me, and doesn't have to be sent away for repairs. Help! What should I be looking into? What are the "must-haves" for desktop replacement computers? And what the HECK is a firewire anyway?