iTerm2
http://www.iterm2.com/#/section/downloads
Get the iTerm color settings
https://raw.github.com/altercation/solarized/master/iterm2-colors-solarized/Solarized%20Dark.itermcolors
Apply them in iTerm through iTerm -> preferences -> profiles -> load presets -> import. You can create a different profile, other than Default if you wish to do so.
Then open the itermcolors file, click load presets again and load the "Solarized Dark".
oh my zsh (https://github.com/robbyrussell/oh-my-zsh)
curl -L https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh | sh
edit ~/.zshrc
and set ZSH_THEME="agnoster"
install a patched font
https://github.com/Lokaltog/powerline-fonts/blob/master/Meslo/Meslo%20LG%20M%20DZ%20Regular%20for%20Powerline.otf
Set this font in iTerm2 (14px) (iTerm -> preferences -> profiles -> text).