Also:
Insecure: http://www.makeuseof.com/tag/security-failings-demonstrate-a...
Some fry your lap: https://www.google.com/search?q=lenovo+hot
Insecure: http://www.makeuseof.com/tag/security-failings-demonstrate-a...
Some fry your lap: https://www.google.com/search?q=lenovo+hot
None of the listed issues were applicable for the laptops that OP recommended