Dyson makes good vacuums and the DC33 won’t disappoint. It has plenty of power and features to keep up with your needs.
If you’d like to spend a little less (about half ), yet not sacrifice performance, then I’d recommend considering the LG LUV300B. It is heavier though, about 22 lbs.
The vacuums that will most fit your description are the Oreck Quest Pro or a Miele Ariel. These are canister vacuums, which means there is less weight and stress on the user. Both are extremely quiet, powerful vacuums that are easy to use and maintain.