I'd agree with cgomes3; if you like "upgrading" your laptops every 9 months-a year, go for Inspirons. After that they invariably start having problems, although with a long warranty that situation may be acceptable. Here's a laundry list of the the things that have "happened" to my Inspiron 8100 since I bought it in July 2002 -- the 3-year warranty has more or less covered it. Note that Dell pays for shipping both ways; an on-site warranty is much better, obviously. The only reckless use I subjected the laptop to was running it mostly on batteries for the first 3 months or so...the batteries the began losing charge and died, can't blame 'em.
December 2002: Keyboard keys faded out, some completely. Serviced by mail in about 1 week.
February-March 2003: Power adapter began having problems at location 1. Basically, the 14V wire had some loose connections to the plug that plugins into the laptop. Had to do things like keep the wire pulled tight by taping, etc. to keep it working. After the usual 1 hr Dell Outsourced Service rigmarole, got a new one Airborne Second Day (Dell always ships ASD for me).
May 2003: Another power problem. Adapter seemed fine though. Laptop required multiple presses of the power key to boot, although the key seemed fine. Laptop sent for service, they keep it for a week, return in same (non-working) condition with the excuse "We couldn't find your warranty details". Call me, duh!?
June 2003: Goes back for service after another call, comes back fixed in one week with new motherboard/new processor (so the attached report says). Works.
September 2003: Built-in CD/DVD-ROM drive stops working with CD-Rs past about the 65-min/600 MB point. After a protracted head-banging session, I finally have to invent a non-existent Windows error to get them to send me a new one. The old one was the slim version that fit into the special optical bay in the side. Despite giving them the exact model number, they ship me the removable additional drive-bay version that is bulkier. At least it works...I don't bother trying for the slim version again.
November 2003: Same power adapter problem, in location 2...loose connection. Very gullible lady on the other end, accepts my line about it being a fire hazard and sends me a new power adapter Next-Day.
December 2003: Hard-drive makes clicking noises suddenly, and stops working/booting up. Putting it in the freezer overnight lets me image it to a desktop drive before it starts acting up again. Laptop stays in hibernation because I am moving soon.
January 2004: Location 3. Laptop seems to boot up and work okay.
HD fails again after three days. Dell sends replacement in 5 days.
Current status: Keys faded again. The headphone jack is very "loose", because the two plastic halves that clamp it together have separated; no visible screw, so either headphone cord has to be pulled really tight against the jack (the old power adapter trick), or two PCMCIA cards have to be shoved into both slots (since the jack is situated beneath the slots) to "push" the top half of the jack down. Needs service, the longer mail-in kind. I think it's time for me to have it spruced up one last time and then eBay the thing before the warranty is up in June next year. Edit: also, the clasp that holds the (replaced) DVD-ROM drive in the external bay has become loose, so that the drive pops out if the laptop is anything but perfectly horizontal.
The moral of the story: Inspirons are built to last at most an year before things start dropping out. As my keyboard, power and headphone problems show, build quality sucks. Dell ultimately sticks to its extended warranties, if you can get past the moronic CS. When they ask me to do the usual power-off, reboot, Device Manager, etc. schtick, I just "mime" it for their benefit while I'm actually browsing the net or something on the desktop -- I have enough PC troubleshooting experience to mentally reproduce errors (or the lack thereof). If you do get a Dell, Inspiron or Latitude, go with a higher-level of support, preferably with on-site service. I believe that if that service does require them to to take your machine to a service depot, they give you an alternate machine to work with for the time being. There is something to say about the quality of the Dell LCD displays though: I got a UXGA (1600x1200) 15", and it's been a beauty. No dead pixels, no loss of brightness with aging.
On a side note, the best way to often get Dell CS to quickly replace a part is to say it has completely failed, but you tried a working part from a friend in your laptop and that works. I had to do this with my DVD-ROM drive: the first time I gave the CS guy the actual Windows error (CRC failed), he went to look in their knowledge base, and after 20 minutes on hold, I gave up. I called again the next day, saying the drive wasn't detected and the light didn't flash on bootup, but a friends drive worked perfectly. They agreed to replace it in less than 5 min of my getting through to a human.