Semantic and reliable programs you use on your Mac

[mitridi_g]

Hello everyone
I am asking you ALL to add your stone on my tower of knowledge.
What programms you do want to have installed on your Mac, what is it doing in a few words and with 10 as perfect how much do you give in order speed-reliability-cost (if it's free, even better).
I will start saying that:

MacTheRipper: It can extract commercial DVD movies to your hard drive, minus all the copy protections and region controls put in place by DVD publishers.
With perfect 10, i give 9.

Toast Titanium 8 : Toast 8 sets the standard for burning CDs, DVDs, and now Blu-ray discs on the Mac. With perfect 10, i give 8,5.

Little Snitch: Little Snitch tells you when a program tries to send info to the internet so you can see what's going on in the background!Very usefull, With perfect 10, i give 9.

Greetings from Athens, Greece
Dimitris