[tseabrooks]

Using C++ professionally for a while now (College, grad school, embedded sw) the best two complete IDEs I've found are SlickEdit (Cross platform) and Visual studio. If you've not tried SlickEdit I definitely suggest it (They have a trial).

Additionally, they have an interesting blog post here describing whether they are an IDE or editor here:

http://blog.slickedit.com/2007/08/editor-or-ide/

tl;dr SlickEdit has no built in compiler or debugger. It's other IDE level support is fantastic though and it was perfect for embedded development work where you're building from the command line (Which you can connect to the SlickEdit Project) and debugging using GDB.