In UX terms, Dell's web site is pretty good. Three and a half stars in my book. However, I don't know about you, but I think the following post-purchase survey question should be
select all that apply, rather than
select one.
I just saw this question come up while my sister just ordered her new Dell Inspiron and I had to screencap it...

But Mr. Dell, I cried... What do I choose if I want to use it for MySpace, biological research
*and* missile technology research...