I currently have one dedicated server running RHEL 3 (with cPanel/WHM of course) because at the time I ordered it my data center recommended it. Now I'm in the process of getting another server and my data center now recommends RHEL 4 instead, and I'm curious to know what other users here think in terms of: - Have you noticed any major differences or challenges with 4 as opposed to 3? - Are there any catches to take into account as far as maintenance or operations? - Are there any major benefits to going with 4, or should I stick with 3 if I'm comfortable with that? Thanks very much for your opinions!