Do y'all think a 3-footed Siberian Husky could still do flyball and agility courses? She has the heart and the drive, and i know she will do anything to please me!

I'd say yes to Agility, if you take it easy and if you intend to trial; put her in specials (depending on where you live... I know here in Canada the AAC has a specials devision [=lower heights]), but I think I'd have to say no to Flyball... I'm no Flyball expert, I know a bit about the sport but haven't ever really looked into it or participated... but I would think flyball would be too hard on her joints (also probably depending on which leg is missing). A lot of those dogs hit the spring boxes pretty hard. I met a girl who had a lab with shoulder problems that came about after he was heavy into Flyball, but that could be a whole 'nother debate on whether or not Flyball was the actual cause. I think I'd still take it safe and not choose flyball though.

NADAC allows 3 legged dogs to do agility. I think it's just courses without jumps or contacts. Check out their website.