Here's the dowload page for Suse http://en.opensuse.org/Released_Version#Downloads_SUSE_Linux_10.1
I don't think you'll find a free way to get the cd's shipped to you. There's like 5 of them. I think you only need the first 2.
There is a thing at http://www.vmware.com/products/player/ that will run an os inside of your os without having to install it.
You install the vmware player and then download an os here http://www.vmware.com/vmtn/appliances/directory/ and the os trials are usually about 1 cd in size if that helps.
I tried suse, ubuntu, slackware, fedora, and a few others in one shot. I decided on Suse or Slackware until I ran into a thing called pcbsd. Suse is going to be mainstream and probably the best pick, but I'm not looking to replace windows, so I went with pcbsd which is more secure and stable since it's based on freebsd.
Anyway, you need to get on a machine with a high speed connection or get a download manager and run it over night downloading while you sleep, then get up and stop it, and then start it again the next night. I downloaded suse 9 with dial up using this thing http://www.leechget.net/en/