Simulate Mouseclick on Mac OS X & which Arduino

Hey there!

I hope I chose the right "topic" for my question, if not, please let me know :)

I am very new to Arduino, in fact I don't even have one yet :D But I think getting started won't be that hard for me, because I did lots of things with the Raspberry Pi. I'd appreciate if you could give me a clue on which Arduino Board I should choose for my project.

So what I want to do is this: I want to simulate a (left) mouse-click on my iMac every 5 seconds or something like that. I already have lots of jumper cables.

If you need more information, please let me know.

Thanks

Leonardo can easily appear as a HID with wide scope capabilities, mouse, keys and stick at the same time.