Installing go 1.4 with homebrew on OSX:

1) Create Directories

mkdir $HOME/Go
mkdir -p $HOME/Go/src/github.com/user

2) Setup your paths

export GOPATH=$HOME/Go
export GOROOT=/usr/local/opt/go/libexec
export PATH=$PATH:$GOPATH/bin
export PATH=$PATH:$GOROOT/bin

3) Install Go

brew install go

4) "go get" the basics

go get golang.org/x/tools/cmd/godoc

5) Start here: https://golang.org/doc/code.html at "your first program"