Step 1- Choose the operating system you want.
There are two main types of operating systems on the market, Macintosh and Windows based systems.

Step 2- Choose the size of the laptop you want.
Screen size- The screens keep getting bigger; most laptops range from 12" to 17" screens, with a few coming in 9" sizes.

Weight- As the screen size increases, so does the weight. Some have a lightweight aluminum design which cuts the weight.

Step 3- Choose the type of performance you want.
Processor- There are two types of processors, mobile and standard. The mobile processor is slower, but has a longer battery life. It is good for word, internet and email. The standard processor is faster up to 3.06 Ghz, but it has a shorter battery life. It can be used to replace a desktop computer.

Systems Memory- Don't get any less than 256MB if you want to do more than word or email; high end grpahics need 512MB.

Step 4- Choose the options you want.
Hard Drive- You may not need the space but most hard drives now come with at least 20GB or more, some have 80GB.

Optical Drives- Some laptops come with DVD-RW drives, the next best thing would be to get a DVD-ROM and a CD-R combo.

Wireless Networking- Many laptops come with built-in wireless or PC card slots that you can add wireless cards later.