W3rd! Lowering, while it may look cool for some cars, is asking for trouble in the way of having to change your driving habits. Speed bumps will feel like mountains and might even keep some of your car when they're done with you.
Of course, you'd expect someone with a screen name like mine to crap all over lowering a car.
Actually, I have a '95 Honda Civic VX hatch that I'd considered lowering an inch or so. Until I'd gotten under the car and observed the crinkled oil pan, that is - it's been bottomed before without having been lowered... that's a pretty good deterrent right there. Not to mention, the car is already low enough to cause me pain getting in and out (I'm 6'5"), and lowering it even more won't be beneficial. It's also just a daily driver for its economy - and I've added some cool stuff to spiff it up (sorry, those cars are pretty blah out of the box) in the way of 16" 7-spoke rims and 40-series tires (which maintained the same overall diameter as the stockers).
People have called my Honda a 'Monster Truck' before because it's not lowered (it's stock height). At least, that's what they think until they see my Jeep parked next to it.