Branching from console to window

I've been programming console programs with C for quite some time, specially for contests like the ones in acm.uva.es. Now when I want to make windows programs using C, everything seems real vague . Please help me with where I should start?

Tell me about a good IDE that can help me build windows programs in C.

I'll give you a different advice.

Start writing windows programs in C# or maybe even Java (C# is a better idea if the target OS is Windows, we're pushing people to write Windows software in C# for Longhorn, lots of stuff is going to happen on that side)

1) It's faster to write
2) It's easier to maintain
3) No real speed hit for the UI since it's not a performance critical part of the app
3) You can easily plug your C code using managed C++ if you're coding in C#, don't know about what Java offers in that regard