i didn't have any trouble learning how to use my mac. You can use alot of the same programs like FireFox and microsoft office. In fact i like the Safari internet that comes with the mac better then internet explorer. Also i use the same mouse on my mac that i used on my dell so i do have the right click option.
the back button on my mouse no longer works tho...can't figure out how to fix that, but i learned to deal with it.