KITCHEN AID KP26M1XNP Professional 600 Series 6 Qt Stand Mixer Nickel Pearl
Go for the pro. The mixing bowl lifts up to meet the beaters rather than a tilt head, so it is easier to move around. I have used it to make bread, beat stiff doughs, and whip cream. I have never had a problem with it being unable to handle whatever I throw in it. Perfect for a big family or a serious cook with a 6qt bowl instead of the more commonly seen 5qt bowl.