I've actually got a dell computer taht I use for gaming and I, for the most part, hate it.
The good things:
It's relatively quiet (most of the time),
it's got a dvd burner,
in the winter it can heat my room,
it turns on most of the time.
But I bought this system (check siggy) in November for $1450, way more than it would be for it if I had made it. I actually checked how much everything would be using the cheapest versions of these parts and it was only around 700 or 800 dollars. *note: it came with only 1 gig of ram in 4 256mb sticks, uber old and crappy stuff too.*
When I got it, there was 3 columns of icons on my desktop, all bloatware and crap, which I promptly deleted. A month after I got it, my hard drive randomly crashed and most of the important windows files got destroyed so I couldn't boot. I was on tech support for hours upon hours trying to get it fixed. I went through 3 different people, who all took me through the same damn thing over and over again, which was trying to do a windows repair. In the end I took it into my own hands and went down to a local computer shop and they copied my hard drive over to another one and I destroyed everything and then reinstalled windows from an older winxp cd, because they didn't give me any cd. They had a "surefire" pc restoration system that uses a hidden partition that had an image of my hard drive as it was shipped on it. All I had to to was press a few buttons and it would do it all. WRONG!!!!
Had to search forever to find the right drivers for this and for that, only just got the SM Bus drivers a few weeks ago. 2 months later, I get a package on my doorstep that has all the disks like the winxp and Sonic dvd and such, since I had asked them for it. They never helped me out one bit with it all, other than figuring out that it was royally screwed, which I had already found out, since I couldn't fix it myself.
Now later on, I want to upgrade my computer because the 250 dollar upgrade for an underclocked ATI Radeon X600 really isn't cutting it very much anymore, well turns out that my PSU is only 310 watts, is specially made so that normal psu's dont fit, there are no connectors anywhere to connect any fans or anything, the case still makes that metallic vibrating noise and if I touch anything, my warranty is void. I installed new ram anyways, my warranty period was almost up and it's not like I really care if it breaks anymore. In the summer I'll sell it to my friend who does photography and build myself an AM2 system, which hopefully won't suck ass like this one does.
I used to reccomend dell, back when they didn't suck so much, but nowadays, they just fail at life.
OH one last thing, when I was with dell on the phone, I asked them if they were gonna give me a new hard drive, they basically said no. They said that in order for that to happen, I'd have to send my computer in (i'd pay for shipping), they'd have to look at it, and if it truly was broken, then they'd put in a new one and send it off, with all the crap on it that was there the first time and I'd pay for shipping the other way. It would take something like 10 weeks for them to do this, which I wasn't gonna face. They said that if I was an enterprise or something, They would send out a guy to go to my house and replace the hard drive, but have nothign on it. Tech support is most of the time useless, you get a way better answer, as well as more knowlege en case something ever happens again, and it doesnt cost anything, ever.