Is there a OpenBSD friendly hardware vendor out there?

[John Brahy]

I have always purchased dell servers but I got screwed by adaptec. 
   
  Does HP, IBM, or anyone else provide a 1u rack mount server with hardware 
raid that is fully supported by OpenBSD? Or do I have to go to each vendor and 
get them to tell me the chipset for each part?
   
  Thanks,
   
  John