The problem with normal servers is that since there are so many of them, it is very unlikely you will get a bunch of regulars on your server. That said, I don't mind if it is a normal maps server, but I think fun maps would be better (e.g. the same as now).

I also love Reverse GunGame: http://addons.eventscripts.com/addons/view/gungame

and CSS: DM: http://www.bailopan.net/cssdm/

Those are the versions I have used in the past, and are the most popularly used I think.

Also, you need to decide whether you prefer rounds in GunGame or not (deathmatch or not). I actually like both modes, so it's up to you.