I completely understand where you're coming from and totally agree that for the kind of stuff you're talking about, Linux is the definitely the go. Open source

I completely understand where you're coming from and totally agree that for the kind of stuff you're talking about, Linux is the definitely the go. Open source web dev tools are great on the Mac though. I get by just fine using Ruby Gems for all my Ruby/Rails package management needs (the Ruby Gems system actually makes sense on OS X where as on Debian, it just felt redundant at best and annoying at worst) and I prefer to compile Ruby, MySQL, PHP, Git etc. myself in /usr/local anyway. I feel like I've got more control of where everything goes that way. When it comes to using these kinds of open source tools, I very much prefer to have a Unix style terminal to work in rather than what passes for a terminal in Windows. I'll never totally give up Debian for OS X, but if it's a choice between Windows and OS X for my general work/entertainment machine, I'll choose OS X.