Help My Dad!

Any of you folks know more about decent brands of PC computers than I do? I haven’t done much shopping for the other side of the fence, so any input you PC-wise folks can provide would be welcome. Here’s what Dad had to ask:

Speeking of computers, I will be looking for a PC to
complement the Mac. Much of Meara’s work in webmaster
class and other classes are on a PC platform. Any
suggestions that combine the best in quality, features
and affordability?