I'm a long time Mac user. One thing I like about Linux is its package manager. Brew is a package manager OS X but it isn't as powerful as aptitude because it's

I'm a long time Mac user. One thing I like about Linux is its package manager. Brew is a package manager OS X but it isn't as powerful as aptitude because it's not integrated into the system the way aptitude is. All the things you mentioned are easily installable. I would recommend that you get a second-hand machine; Macs ARE more expensive but I enjoy using them. They're not for everyone though so I would hedge your risk by getting a second-hand one. If you love it then the next time you're in the market for a new machine you'll know what to get. If you hate it then you can cut your losses.