I'm afraid that Novell is not going to have too many people switching from Red Hat to Linux with their current SLES (SLES10U2) offering. I've been working with SLES10U2 extensively, and from installation to use, SLES 10 is getting long in the tooth compared to Red Hat Enterprise 5.
(Even the kernel is two versions behind Red Hat Enterprise Linux 5.)
Open SuSe 11 looks very promising, and as soon as Novell moves to SLES 11, a change from Red Hat could be considered.

