Lenovo ThinkPad W700ds

For business users, reviewers say the Lenovo ThinkPad W700ds is a top pick. What sets this business laptop apart from others is its dual-screen display -- not only do you get a 17-inch main display, but also an additional 10.6-inch display that pops out from behind the main screen. While one reviewer questions whether or not this second display is really necessary, another calls it "groundbreaking." The Lenovo ThinkPad W700ds currently starts at $2,100, but most reviewers test upgraded versions that include a quad-core processor, more memory and a Blu-ray drive.

The base-model version of the Lenovo ThinkPad W700ds has a 2.8 GHz Intel Core 2 Duo processor, 2 GB of memory and a 160 GB hard drive. If you splurge for some of the recommended upgrades, reviewers say you'll get desktop power in a laptop. However, the Lenovo ThinkPad W700ds weighs 11 pounds, so it's not easily portable -- it doesn't even fit in many laptop bags. It's also an expensive laptop, so reviewers say the ThinkPad W700ds is best for business users who need serious power. If your budget is more modest, the HP Elitebook 6930p (*Est. $1,100 and up) gets good reviews, is cheaper and weighs nearly five pounds less.

Laptop Magazine and ComputerShopper.com provide the best reviews of the Lenovo ThinkPad W700ds, backed by relevant testing and thorough analysis. HotHardware.com, Wired and PC World also provide good reviews, but these sites are less comprehensive and focus more on features.