All Tablet PCs

The Bottom Line: If money is no object for you, the Toshiba Portege R400 is an eye-catching, Windows Vista conversation piece, but the rest of us will want more performance from a system this expensive.

Specs: Intel Core Duo (1.2 GHz), 1.2 GHz, 2 GB DDR2 SDRAM, EPA Energy Star, RoHS, Mobile Intel 945GM Express

The Bottom Line: The Lenovo ThinkPad X60 Tablet strikes the best compromise between a ultraportable tablet and a full-featured laptop.

Specs: Intel Core Duo (1.67 GHz), 1.67 GHz, 1 GB DDR2 SDRAM, EPA Energy Star, Mobile Intel 945GM Express

The Bottom Line: Though inexpensive, the Portege M400 convertible tablet's middle-of-the-road performance and battery life may not be enough for the demanding business user. For basic tasks, however, it's a decent bargain.

Specs: Intel Core Solo (1.66 GHz), 1.66 GHz, 512 MB DDR2 SDRAM, RoHS, Mobile Intel 945GM Express

Editors' Take: The midsize Toshiba Satellite M65 strikes a good balance between nice multimedia features, solid performance and battery life, and a fair price.

Specs: Intel Pentium M (2 GHz), 2 GHz, 1 GB DDR2 SDRAM, Mobile Intel 915PM Express

Editors' Take: The Toshiba Tecra M4 is a full-featured laptop that you can occasionally use as a tablet.

Specs: Intel Pentium M (1.73 GHz), 1.73 GHz, 512 MB DDR2 SDRAM, Mobile Intel 915PM Express

The Bottom Line: With the performance of a laptop in a lightweight case, the ThinkPad X41 tablet is one of the best convertible tablets we've seen.

Specs: Intel Pentium M (1.5 GHz), 1.5 GHz, 512 MB DDR2 SDRAM, Mobile Intel 915GM Express

The Bottom Line: The TC1000 isn't the speediest tablet we've seen, but if you're after style and flexibility, it's a winner.

Specs: Transmeta Crusoe TM5800 (1 GHz), 1 GHz, 256 MB SDRAM

Specs: Intel Core 2 Duo (1.5 GHz), 1.5 GHz, 4 GB DDR2 SDRAM, Mobile Intel 945GM Express