Consider also what CPU is used, it's cheaper coz it uses either VIA or Transmeta Crusoe.
I'm using a Fujitsu Lifebook P series with Transmeta Crusoe, 700Mhz 128mb, and I find it slowwww.
Maybe try to consider a processor above a 1Ghz speed.
kami naman, dell ang preference, yung compaq daw sabi ng ibang user, yung lcd ang madaling masira daw ( o depende na sa user) pero the best daw ang TOSHIBA !!!!