keV, I have 2 Dell laptops with SED and Wave software, Vostro 1520 and Vostro 3300. The Vostro 1520 is in my office, and the Vostro 3300 is at home. I use them everyday, and love it. They are the work horses. There is no lost in performance at all, and if I loose them, I know my data are safe because no one can get in.
You may want to buy couple Dell laptops, and try them yourself before talking trash about them.
The above content is just my opinion.