I'm using Netbeans from time to time on Solaris and the latest (6.5) version is pretty neat. It has all the features that you need, perhaps autocompletion could work better, but I have a really bad code base so it might be the result of it. Keep in mind that you need strong machine for that, if it's your PC it's ok but Netbeans on a remote server (like I tried) is really slow unless you have a decent hardware. There are few simple refactorings for C++ with nice preview option, definitely worth a try.
You can get a whole Sun C++ pack from here:
http://developers.sun.com/sunstudio/downloads/express/