I have a new Dell 8250 loaded (running XP Pro)- 200 gig hard drive, 1024 Ram 18" Ultra Sharp flat panel, DVD and CD burners.
No problems with this computer other than the speaker system (Harmon Karden) right out of the box. The speakers were replaced: since it took them an excessive amount of time to process the warranty claim, they gave me an upgrade to the Altec-Lansings for free. That is my only experience with CS. I can handle my own technical problems.
I also have an older Dell Latitude laptop that has never skipped a beat, and my desktop computer at work is also a Dell Dimension (a couple of years old) with no problems.
My new company laptop is a Gateway, and so far it has proved itself well. A couple of family members have Gateway desktops, and have had good luck with them as well.