I was going to go with a Dyson but ended up with the sears kenmore progressive upright it was rated by consumer reports as a top pick for pet hair and it is half the price of the Dyson. I bought mine 3 years ago and is still going strong. I love that all the attachments and switching from carpet to bare floor is all at my fingertips. I checked the Sears website and have attached the link for the new version of my vac below.
Quincy attacks the vac when I turn it on, but recently I used the pet hair/ stair and furniture attachment on him and he loves it. The rotating brush is like a massage to him! Beats brushing him too!
I have friends who have bought a Dyson and love it. It is all a matter of preference.