I really cannot thank you guys
I´ve got all the info i needed and some extra too, and the best part is that I understood the difference betweet different types of solid state drives.
So, thank you guys again for teaching and helping.
ps: I was thinking about buying a 250gb SSD for the OS and programs and another 500gb SSD for games, music, movies.... data in general but i don´t know if its worth it.