Alternatives to Dell?

Folks,

A lot of people have been having a devilish time with Dell hardware lately.  
It seems like the quality control just isn't there on the Dell servers.

Thing is, some companies are required to use 1st-tier or at least 2nd-tier 
vendors for hardware; they won't home-build.   For those people, what vendors 
do others on this list recommend?   What have been your good/bad experiences?

-- 
--Josh

Josh Berkus
Aglio Database Solutions
San Francisco