For the snow getting in his paws, it helps a lot if you cut the hair down between his pads. I'm not a fan of fleece booties. I picked up a bunch for free on the Irod trail a few years back while heading to our cabin (great place to get free booties. I picked up who knows how many brand-new ones that hadn't been worn). The fleece ones collected snow on the outside and got water like a sponge for me, so I've been sticking with the cordura and nylon ones when I use them. If you're not making them on a large scale, you can probably make some that are fleece lined for extra warmth. It's way cheaper to make them (the "cheap" ones cost $1 apiece, and I've seen them range into the $15-$20 range for 1 set!!!).
Here's some sites I gathered up so that you can get a general idea on how to make them:
http://sunhusky.com/booties/
http://www.uberpest.com/booties.html