give amapi designer a look @ http://www.eovia.com/products/amapi_designer/amapi_designer.asp
maybe not the best but has the features you want, is cheap, runs on mac and windows.......kinda weird to understand to start, but once you get a hang for it it's quite logical.
my 2c
maybe not the best but has the features you want, is cheap, runs on mac and windows.......kinda weird to understand to start, but once you get a hang for it it's quite logical.
my 2c