If you?re keyboard-oriented, go into System Preferences | Keyboard and Mouse | Keyboard Preferences and Turn on full keyboard access. Now you can deal with dialog boxes the way you?re used to, as well as accessing menus and toolbars with the keyboard.
There is even a hint on getting the home and end keys to work more like Windows users expect them to. I?m struggling with their Mac behaviour, but I?ll perservere for now. Check out the Windows Centric tips