Kevin Martin writes:
Also try Penguin Computing. That's who we use...price competitive, understands Linux.
My recollection, the last time I checked them out, is that they ship workstations with installed frankenkernels, and various other binary blobs. But if they're still doing that (it's not clear after a brief look at their website, but the fact that they sell only Nvidia video cards is not a good sign), I would argue that they don't understand Linux, just yet.