Well, I just ordered myself a brand new Lenovo Thinkpad T60 Widescreen:
Core 2 Duo T5500 (I'm not going to 2.0 ghz, and w/ the 1.83 having the same cache as the 1.66, I don't see the point in an extra 200mhz)
15.4" WSXGA+ LG-Phillips screen
1 GB ram (I'll add more myself later)
integrated 802.11a/b/g/n
ATi X1400
DVD-RW DL burner
9-cell extended battery
5400 rpm 80 GB SATA HDD (5400 rpm has always been fine for me as long as it's got at least a 8mb buffer....and I'll maybe swap it out for larger capacity H-HDD later...)
Reg. price: $1800, sale price: $1200
Yes, I know the 14" widescreen T60 is coming out, as well as Santa Rosa, but I needed a new laptop now. I only have one pc, a laptop, and it's been needing to be replaced... BAD. Here's what I'm upgrading from:
AMD Athlon XP-M 1800+
1GB ram
DVD-ROM
40GB HD
14" XGA screen
Integrated gpu that can't handle HD content
broken PCMCIA slot
usb 1.1 which works only half the time
on it's 4th charger which won't give it a full charge anymore
802.11a/b/g that has a range of 30'
Anyway, I do agree to go to stores, see what kind of keyboards you like, I highly recommend to stay away from Toshiba's though. They use a retarded, non-standard keyboard layout, and the quality in any of their products is non-existant.
Go dual core definitely. Preferably a Intel Core 2 Duo. The base, T5500, 1.66 GHz model will suit you.
1 GB of ram will be fine for you.
5400 rpm drive will be fine for you as well.
Integrated intel GMA950 graphics are fine for your purpose
Most all laptops come with at least integrated 802.11a/b/g, you don't really need 802.11n unless you plan to transfer big files wirelessly over the network.
Screen size: I say anything over a 15" is too much, Anything larger than 4:3 14" or a 16:9 15.4" will be too big for a plane, as well as heavy.
The average life on laptops is about 2.5 hours for a 14-15" screen, so you can get an extended battery if you think you'll need more. Yes you can milk the std. battery to 3 hrs+, but since you're not the most computer-literate, (no offense) 2.5 is what you're going to get.
Some of the better brands are:
Asus
Apple
Lenovo
Dell
HP
LG (not available in US though)
Ones to stay away from:
Toshiba (Build quality? What's that?)
Alienware (What? Customers don't want to buy over-priced pieces of crap?)
Averatec
Other brands you've never heard of...
Gateway is an ok brand, as is Acer, but gateway would be nicer than acer.
Sony's are nice, just soooooo over-priced!
If customer service and build quality are important, then an Apple or Lenovo Thinkpad would be your best bet. They do cost a premium though.
Vista:
Yuck. Only way to put it, lol. I've got XP Pro and Vista Ultimate, and I much rather prefer XP Pro....but I know some companies won't let you buy a computer w/ XP anymore, in which case, just make sure not to get Home Basic. Get at least Home Premium.
Yeah, I just kinda rambled on in no order, but hopefully it helps you out some.