Summary: I'm always worried about knock-off adapters, as I recently lost a $500 iPad and a $200 iPod to a bad car charger. I bought this because it seemed better than the truly generic eBay adapters, and specifically mentioned my ThinkPad as a supported model. The adapter runs much hotter than my Lenovo charger after it is used for 10 minutes. I can hold it in my hand, and wouldn't burn you, but it is uncomfortable to do so after about 20-30 seconds.
Summary: Good machine for business use with very solid build, a little on heavy side. Very fast processor with accessible hard drive and memory bin. XP Pro. Noisy fan runs all the time and can not be throttled down ( google this problem ). Noise is not noticable in store environment/busy office but very evident at home in a quiet room. Machine also beeps every time power cord is removed.