http://eeepc.asus.com/global/Typically, smaller laptop = more money, less processing power
The EeePC from Asus is quite nice though. It comes with a customized version of Linux, but includes drivers for Windows XP on CD. It DOES NOT include Windows XP, you'll have to purchase that separately. I have an EeePC 8G myself. With it I also purchased an external hard drive (250GB), since the internal drive is only 8GB. It has 3 USB ports, any of which should support a flash drive, and it has a built in SD card slot. It's very light weight (less than 2 lbs. with battery). There are various models of the EeePC ranging from $300-600.
Pros:
Decent battery life
Lightweight
Runs Windows XP
Built-in wireless
Great for school and office work on the go
Cons:
Keyboard is quite small (not good for fat fingers)
Processor is underclocked to 600Mhz (can be set to 900MHz, but has heat issues at that speed, not recommended)
Limited on-board storage so you can't install a lot without some other kind of storage (flash/external drive)
7-8.9" screen, depending on model
Not built for games, doesn't have the processing power or resolution needed for most modern games
No CD/DVD drive, need to buy external USB