Dell :: M4400 Slowly Falling Apart

I've had my M4400 for less than a year now, but it's slowly falling apart, despite very good care on my part.

The problems so far:

+ 0 weeks after purchase: the fingerprint reader doesn't properly function due to driver issues
+ 2 weeks after purchase: the screen failed and had to be replaced
+ 3-4 weeks after purchase: the webcam failed (it was probably dead on arrival with the new screen) and had to be replaced
+ ~3 months after purchase: the inner bezel was permanently marked by the inside rubber feet
+ ~4 months after purchase: said rubber feet came off, causing the screen to flex more and the marks to worsen
+ ~6 months after purchase: the system frequently overheated, becoming uncomfortably hot to touch and causing an ever so slight bend in the chassis in the lower right corner
+ ~9 months after purchase: significant wear and flex on the keyboard, plus the matte surface on the lid has worn off in parts after using Dell's padded case
+ ~10 months after purchase: the black film on the left speaker is pealing off

I really love Dell, and I've bought a few systems before, but I'm quite surprised this notebook is falling apart so badly after such a short period of time.

My question is: what should I ask them to do?

Can Dell only replace individual parts, or could I get a new system from them? If so, what happens about my upgrades (RAM and HDD)? Do they take them back too?

As an aside, I know it's early days, but does the M4500 suffer from similar design defects too?