Whatever model you get, make sure you get the Turbine head attachment with it, like the others have mentioned. Some models come with it, but you can buy it as an extra attachment. It's definitely a must have! Not sure which model mine is sorry, but it's the one with the white lid.
Agreed. We got one that is specifically for animal hair/allergies - our two jack russell's shed like no tomorrow! Ours has the purple lid.