Well, I was a Dell cheerleader and always said I'd never buy anything else but I've changed my song and dance after numerous issues.
I have a 2 year old Inspirion 5100. I am on my 3rd powercord, 2nd harddrive, 2nd memory card, and 2nd motherboard. Each time, I spent 4 plus hours on the phone or online with the tech support - they are HORRID now that they are outsourced. They are kind, but dont understand everything and know nothing about computers. Each time I knew exactly what was wrong (my dad works on computers) but we went through hours and hours of stupid tests to find out what was wrong. The last time, the motherboard went out and they had me turn the computer on and off LITERALLY 12 times. I began to count. I was on the phone from 7pm to 11:45pm when I finally told them I wanted to go to bed. =)
So, would I buy another Dell? Heck no. I shouldn't have that many issues in 2 years time. Thankfully, they were all covered under warranty but the warranty has now ended (last week) and we're on our own for repairs. I know a handful of people IRL that have Dell laptops and have had lots of issues, too. Otherwise I would assume I just have a lemon. The desktops seem to fare better than laptops, too.
Next time, we're going for an Apple. Even though the low prices on Dells are tempting it's just not worth the countless hours of headache I've had.
Good luck in your decision!!!