First it was the Maxtor hard drives that went bad, then it was the capacitors popping. The company I worked for at the time had literally thousands of these things--and nearly every single one had to get a new motherboard and hard drive before the warranty cycle completed.

Also, we had a Dell 'certification' that essentially let us go to a part of the website, and order the replacement parts for any warrantied system. It was really slick. When the site didn't get it done, there was a super-secret US-based support line we could call :)