Sure, some people will have problems, as will any computer manufacturer. As I recall from a recent Consumers Report review, Dell was #2 as far as reliability was concerned, with Apple being #1. But a comparable Apple is twice the price, so don't bother.
I bought a Dimension 4550 P4 2.4, with 60gig Hard Drive, cd burner and Flat panel LCD monitor a year ago for $600. This past summer, I bought a refurb Dimension 2350 for my daughter for $240, and just a couple weeks ago bought a refurb Dimension 2400 for $220. All were with free shipping. Dell offers some incredible deals if you're willing to be patient, and know where to look!
Please show me the price of a Dell with comparable features that costs half as much as an $800 eMac or an $1,100 iBook.