I think that Apple's insistence on the one button mouse had passed into absurdity a long time ago, but I had also thought that everyone knew you could just plug in a different mouse - most applications support context menus, and scroll wheels work fine. I was wrong though - Mark Cuban is hardly the only one who just (grudgingly) accepted the one button mouse:

The 2nd problem is the lack of the right mouse click. I know its a Mac thing to only have one button, but its a hassle. Sure there are work arounds, none of which are quick and easy for a longtime PC user.

Interestingly enough, there's a cool option on the MacBook's touchpad (I have no idea whether any PC notebooks support this - they should): Put two fingers on the touchpad, and then click the button - you get a right click. Swipe with two fingers - scroll wheel behavior. Yes, you have to turn that behavior on, but it is there. This is one of those cases where think Apple's stubborn take on things holds it back.