What is the best hardwood floor vacuum?

I live on a working cattle ranch. My husband is always tracking in dirt and mud. I also have a 3 year old son that thinks the house is his trash can. I do not have a stitch of carpet in my house. Pulling out the broom and dust mop is getting to be a real pain because of my 3 month old. We all have allergies, so sweeping just makes us miserable. Any advice?

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BRAND NEW Dyson DC25 Ball Multi Floor Upright Bagless Cyclonic Vacuum Cleaner    US $469.99

NEW IN BOX Dyson DC25 Multi Floors Bagless Upright Vacuum    US $.99

NEW IN BOX Dyson DC33 Multi Floor Upright Bagless Vacuum Cleaner    US $.99