I've bought 3 Dell laptops in the past year & half (for me & my boyfriend). The Inspiron 600m, E1405, & E1505. They were mostly used for school purposes & we also used the E series for gaming (World of Warcraft).
The only real problem that we had was the 600m overheating bc the fan broke, however Dell fixed it for us under warranty. Unfortunately, that fan broke yet again, only the 2nd time the warranty had expired.
The new laptops have been great except for the minor light leakage at the bottom of the screen (I hear this is very common with Dell's Truelife screens) & the annoying bloat-ware that Dell installs & slows down the system. We just wiped the drive & reinstalled Windows. It was a hassle, but my laptop runs fast as hell now. And since the E1505 has a graphics card in it, the right side of the laptop (where the graphics card is located) gets hotter than usual. Not to where it's a problem, but something to be aware of.
But all in all, I think Dell give you a bang for your buck, especially if you're a student & need a laptop for school purposes. I'm a big fan of Dell... I also have an Axim x51v from them that has been working out just fine too.
Oh yeah, if you are still in the refundable time-frame after buying your laptop, you can call Dell, tell them that you're not satisfied & want to return your laptop & they will probably offer to give you some money back to keep the laptop (it costs them more to take it back than to pay you $100 to keep it). There are forums out there on how to do this. Then maybe you'll find that your system is worth the few minor cons with your system.