hp/compaq sucks... I have worked in enough computer repair places to know better. Sony Viao's... mmm they have had a ton of power module problems in the past. As for now, I dunno. why take the chance when you can get a dell at a good price with good to moderate support. Just hope you don't get some dude in Pakistan or something for support.
As for my experience and my 2 cents here are some things I would suggest:
wireless 802/g/b
40gig plus
display, thats up to you
get somethin lite if you already have a desktop, no need in buying a desktop replacement.
get a fast cdrw 30/50 something x burner if it exists (for fast copying/rippin)
docking station/port replicator so you can add monitor/mouse/ misc junk (IF YOU DON'T own a computer)
don't get WinXP Pro unless you are either in the technical field or planning to connect to a domain at school. 80% of the time all you need is xp home
don't get antivirus from dell - get avg lite it's free
www.grisoft.com
DON'T BUY MS OFFICE from Dell - goto your bookstore and buy the Educational Edition for $100.00 bucks using your stuent ID. It is the SAME EXACT thing if you were to buy it from Dell or other place... just diff licensing conditions
for th love of buddah- make sure it has a modem - I know it sounds strange but go on a trip and not have your wireless card or BT dongle, you'd wish you had a crappy modem. most are integrated anyway.
PCMCIA wireless card ... I'm sure many here could recommend one or 2 but I like the Orinoco cards bought out by Proxim (spelling?) make sure it has an external antenna connection.
ram get al least 512 unless you can get aftermarket cheeper.
if you live with your parents - homeowners insurace will cover the laptop if it gets damaged
a broken LCD costs about 200~800 bucks (decide if you need insurace) I would.
don't go over 3 year warranty - you man not like your laptop afer 3 years
ok i know that was more than 2 cents, but this has been my experience and this is what I recommend to my users here at work.
Dude, he's gettin a Dell.......