GregB,
If you're working with version 7.5, you should find the keyboard shortcuts just next to the different Enfocus menu items in Acrobat.
Most common ones:
Inspector = OPT+CMD(CTRL)+I
Global Change = OPT+CMD(CTRL)+G
PDF Profile panel = OPT+CMD(CTRL)+P
Action List panle = OPT+CMD(CTRL)+A
Place PDF = OPT+CMD(CTRL)+L
New Document = OPT+CMD(CTRL)+N
Cheers,
Brain