Vacuums, any suggestions??

The wife informed me that we are getting a new vacuum. Does anyone have one they recommend or better yet, one they don't recommend.
I have decided that I don't mind spending the money for a good one (Dyson sp?) if it will last for a while. I don't want to drop 500 bucks on a unit that will last only for a year or two.

We have a Dyson DC-07. My wife loves it. It's relatively quiet and does a great job. Her dad bought it for her, and he got it at Bed, Bath and Beyond, using one of their 20% off coupons.