So, I was hoping to install wood flooring in my new home. I had my eye on some Harris ClickLoc flooring. Now, I totally forgot to keep in mind that I am the owner of 3 dogs and my beagle likes to mark his spot and will tinkle a wee bit in the middle of the night. We rescued him when he was 5. In our new home, there is 17 year old carpet that looks like it is 5 years old. An older couple lived in the house before us.

So, will dog urine ruin wood flooring? If so, how bad? Should I go with a nice laminate flooring? I know you fellas as hardwood fans--and so am I. However, my house is not a home without dogs. Oh, we have a 7 month old baby too and we may have another one in a few years.

If my floor will hold up better to pets (and their mess) and laminate floorng is my better choice, what lines should I look into? I want to support American workers as much as possible and I like lighter shades--light hickory, oak, birch, maple. Any help here would be excellent!

Standing topical moisture will hurt Hardwood & Laminate. It's just a matter of time and the result of how much and how long.
Regardless of the "moisture resistant" seams of Laminate, I have seen many cases of swelling at specific seam locations due to consistant pet accidents, at water bowl locations, etc.

Hardwood AND laminate will both be affected to varying degrees by repeated application of moisture, including (especially?) urine. It is very acidic and can damage the finish of both products. And as Floorologist says, the seams of laminates are not impervious to damage from moisture, regardless of what the manufacturer says.
You didnt mention what type of construction your house is, although by inference to your comment on the kind of floor you are looking at, I will make the assumption you have a concrete base rather than joist and plywood construction.
If you choose a floating floor that is licensed to use the "UNILIN" joint system, boards are very easy to replace. Order a couple extra cartons to have on hand to effect future repairs.

Your dog may not like that spot anymore after you install new flooring. Typically pets mark spots that have been previously marked by animals that have lived there before and they feel the need to make their own mark as territorial as they are.

I'd go with the laminate or cork flooring and use the Click Seal (http://www.cal-flor.com) on that area. USFloors makes a cork floor that has a very durable finish and sealed edges as well. The only one I know of that has a patented sealed edge. Expect to pay extra for the installer to use the Click Seal.