I don't want to block them all together from viewing the download page, so I will just keep a eye on it and see how it goes.
If they only hit it once I guess it could be a good thing for use if we end up getting a few more URL's indexed by it.
Having to purchase more bandwidth would not be the worst thing in the world either.

One of our affiliates we work with wanted us to open our downloads so you did not have to register to download a single service manual or two so I'm giving it a try.
We did not have as many new members register yesterday for our site and I believe this is because we opened up our downloads to guest like our affiliate wanted, but we had a great day for selling parts.
Thanks for the reply.