Hi, threre. Well the thread should belong in Computer, ISP, and Programming forum, but I can help you out in here.
It depends on whether you're in budget or not, but for general purpose computing, I recommend you go with a laptop for less than $1000, if your brother are not going to play games.
For a laptop less than $1000, you can get an
Aspire 5003WLCi Notebook,
Gateway Notebook with AMD Turion™ 64 Mobile Technology ML-32, or
Gateway Notebook with AMD Sempron™ Processor 3300+. Those notebooks are similar in features and you should take a look at those. For spending a little more, you could get a laptop with 1GB of RAM and Windows Media Center 2005 for $1000. It's a
Hewlett-Packard Pavilion Media Center Notebook with AMD Turion™ 64 Mobile Technology ML-34
Please note that Sempron is a low-powered version of Athlon/Turion, and Sempron processors aren't 64-bit processors. So if your brother doesn't plan to upgrade to a new operating system like Windows Vista, planned to be shipped during Junurary, then you should go with Sempron. One more note: A laptop with an ATI Radeon Express 200M can allow you to play games that have launched like a couple of generations behind, like around 2002/2003, so if your brother doesn't care about playing latest-generation games, he should be fine.
I'm trying not to complicate things to you but I hope you can understand what I'm saying. I'm a computer geek, though... :P