This is late, but you know what they say... better than never, right?
CodeBlocks has finally released a new version. For ages they weren't doing releases, just nightly builds. When I was working with Shlomi Peleg at SparkThing this app was a staple of our work environment. I haven't used the new release yet, but Peleg says that it's great.
So, if you write C++ and want an excellent open source IDE to work in, check it out.