The T420 is available with either a 1366-by-768-resolution or a 1600-by-900-resolution 14.0-inch display. Our $1249 test configuration came with the latter display, which proved crisp, bright, and flawlessly backlit. A DVD-RW burner comes standard, but there's no Blu-ray option to show off the screen to best effect.

Also available are a plethora of docking stations and accessories, a fingerprint scanner, and Smart Card reader. The many T420 configurations all seem to be on sale, all of the time. A barebones unit costs $799 (as of August 25, 2011) while one with the full panoply of extras, including an SSD, runs about $1600.

The T420 is available with Windows 7 Home Premium or Professional; a number of other software packages are available. Our test unit shipped without antimalware software, but Microsoft's Security Essentials is free for the download.

The T420 is solidly constructed and offers racehorse performance. It's highly configurable with multiple warranty options, as befits a . Just about every IT person we know swears by the T series--for their clients and themselves. That should tell you everything you need to know about the long-term reliability of these laptops.