Generally, it will do everything that a PC does, but the commands may be in a different place than you're used to looking. Best advice is to explore. Be curious, look at the menu commands. Note that most keyboard shortcuts use the command key rather than control. If you think a certain intuitive command should work, it very well might.
Since the IT dept hasn't seen fit to replace that old Apple mouse with a decent $10 Logitech wheel mouse, you can simulate a right-click by holding down control while you click.
An important thing to note is that Mac OS doesn't by default quit a program when you close a window. Ignorance of this fact can lead to runaway use of system resources due to every damn program staying open. You can actually quit a program by hitting command-Q, or selecting Quit from the application menu or a menu which appears when you click and hold on a program's dock icon. You can tell what programs are running by the little black arrows under the application icons in the dock (or blue orbs in 10.5).
Useful UI commands include command-tabbing (just like alt-tabbing), option-clicking on a window or desktop to hide all other windows, Expose commands which are usually bound to F9-11 by default, and option-command-escape to bring up the force quit window.
Let me know if you have any more specific questions or issues.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.
