I wanted to get started with Unix and heard about this program Cygwin. It seems like this program is just a huge database filled with other programs for download (Linux, Unix, Ruby, Python, etc). I tried becoming a bit more familiar with Cygwin by downloading it and watching some videos but overall I feel rather overwhelmed. All these videos aren't all that specific. I went to this site http://www.unixdownload.net/ to find there are many different versions of Unix. What version should i download? Should i try becoming more familiar with Cygwin?