[GTALUG] Brand-name desktop recommendation?

I've been asked by few people about which desktop to buy. They are technical enough to swap components, but definitely don't have time to troubleshoot. They have more important things to do. So, I said any brand, new or refurbished, except HP. Things may have changed, and HP may be good now. Which brand would you recommend for desktop computer for business people? -- William Park <opengeometry@yahoo.ca>