Quick Q: is there a difference between RPMs designated for Red Hat/Fedora and RPMs designated for SUSE? Reason: For many packages not in the repos an official site may only have either a Fedora RPM and the Source tarball, and I'd like to know which is best to use.

If Red Hat RPMs work fine then that helps me out quite a bit; from my experience, compiling from source tends to create conflicts with dependencies I've installed from the official repos.