Max Community IDE.

BlitzMax Forums/BlitzMax Programming/Max Community IDE.

No rush, but any chance of a new build on Sourceforge some day?

You could grab this while you wait for a more official download ;)
Win32 binary from maxide2 CVS. MaxIDE-CE_2.0alpha.zip

Note that its still in development, so it could mess up, but ive been running it for a while now, and have found it very stable.
And if you find any bugs, please post them on the Bug Tracker