If you want a really small, ultra-portable computer for things like browsing the Internet and sending email on-the-go, check out the discount deals on Dell Mini netbooks.
You can buy a Mini 10v for as low as $299, and it features a 10.1" widescreen display, while being just 1.1" think and weighing 2.5 lbs. Browse the other Hot Mini Deals as well, such as stepping up to a larger 12.1" screen with a Mini 12.
These systems come with Windows XP as the operating system and Intel Atom processors as the CPU. All these netbooks start at 1GB of memory (enough to run Windows XP well) and wireless 802.11g networking. Screen range from a 10.1" with a resolution of 1024x576 to a 12.1" with a resolution of 1280x800. Hard drive capacities range from 80GB to 160GB.