yes, what you can do is find forks, or others who are distributing the ISOs for those distros.
perfect example is whitebox, this is redhat enterprise for FREE.
check it out. as for suse as far as i know you can get the suse 9 for free, but not their suse9 pro or any of the pro veriants for free as novel still keeps a portion of the pro distro for some reason out of the GNU project. i do not know all of the details on suse, but i know you can get the RHE for free.