A very helpful IDE and compiler, supports custom appwizards, all round, a well put together program. Nothing much else I can say.
I'm no where near as accustomed to Code::Blocks as I am with VC++, it's still a great program, and allows you to use a selection of compilers, it also detects appwizards that VC++ can't, and because it doesn't use .NET it can help with cross-platform development. I'm not as interested in this at the moment, though if, once I get going properly, you would like to try porting NewDawn to Mac or Linux, be my guest. I'd be happy to add it to the (coming soon) downloads.
Of course, I enjoy playing around with music and clips in this program, for a while know I've been mixing tunes from Freeplaymusic for some of my own little games. It can be used for so many different things.