Hi, All:
I am a college student who's looking to buy a laptop, mainly for writing papers and other academic needs (I have a desktop for other purposes

). Instead of writing a big long paragraph of what I need, I'll just borrow the list conveniently sticked at the top (Thank you for writing that, TheMatt

)
It'd be the first laptop I get so I really have no idea what's out there. Any suggestions would be great! Thanks in advance.
The most important thing to me is that it weighs as little as possible, but I also need a screen big enough for me to see. Anyways, my other considerations are:
Budget: $300 - $600
Screen: at least 10-inch
Mobility: doesn't matter, I'll have it plugged in most of the time.
Durability: I'll be carrying it around, so durability would be nice to have.
Multitasking: at the most I'll be typing a paper while browsing online and listening to music

.
Gaming: no, my desktop is for that.
Calculations: nope
Storage: mostly papers, so storage not an issue.
Optical Media: probably not.
Operating System: I am thinking about XP, but I'll take vista if that's the only option.
Location: USA
Thanks a lot, guys!