Sam, we have a couple of fairly new Dell desktops and one Dell notebook we use in the home businesses. All were reasonably priced and are performing flawlessly.
We also have two Toshiba Tecra laptops, an imac and an ibook. No problems there either.
Also there is an antique HP LH dual pentium 350 server in the basement. Only downtime in 6 years was a couple of hours last May when we moved. I'm not going to talk about the time I decided to upgrade its ram and ordered the wrong p/n
At work my folks have 12 Dell desktops, 10 Tecra laptops, and a couple more antique LH's. No problems with any of them either other than self inflicted wounds induced by our it department.
At both the home office and at work I've had problems with Compaq and HP desktops.
If I needed another desktop I would go with Dell and if it was a laptop I would get another Tecra.