Hey I'm ambidextrous so I'd luv 2 independent mice!
But tracking 2 cursors moving independently wud leave us cross-eyed eventually I guess...
Well a standard mouse has 3 buttons, 5 if you include WheelUp & WheelDown.
If you then get a mouse with the side buttons that AHK treats as XButton1 & 2, that gives you 7 buttons!
AHK then lets you use the & operator to create combination hotkeys such as MButton & WheelDown.
If my math is correct that gives you 49 possible combinations, plus 7 individual keys so you cud program 56 actions on a 5 button mouse.
Of course you can't always use all 56 because using say LButton in a combo hotkey wud affect yr ability to drag items sometimes.
But I think that wud still leave you with more than 20 key combos.
But if you're gonna use 2 mice - I'm assuming 1 in each hand - then yr other hand cud just as easily operate the keyboard 2 press a modifier key so you can do Ctrl+Lbutton or even F1+Wheelup....