Do these machines have the docking port? That's one of the best things about Lattitudes.
On one of the machines at work, we have two 1920x1080 monitors, the power cable, an ethernet cable (Gigabit ethernet, at that), a webcam, a printer, speakers, and a little USB-powered desk fan plugged into a dock. The mouse and keyboard are on the same little wireless dongle plugged directly into the laptop. Push one button and the computer completely separates from the dock, and all of the stuff plugged into it. Put it back on, and it all reactivates in a second or two. I don't think a better desktop replacement solution exists at the moment.
The only thing that would make this setup better is if they somehow integrated all of that using Thunderbolt or something, so you could plug it into the side and keep your laptop's thickness down. Oh, and provide support for external GPUs or something for the gamer crowd.