I found a post on how to set PATH environment variables via the terminal, but for those who like to be escorted with GUI, here’s a little tip for you.

If you haven’t already do so, download TextWrangler. It’s a free text editor for Mac

Here’s the interface for TextWrangler.

With TextWrangler, you can edit hidden files on the Mac WITHOUT the ’sudo’ command. Here’s how:

Under the File menu, you can find Open Hidden. This is the option dialog box which allows you to open and edit any hidden files.

In this case, you need to look for and edit the file called paths located in the alias /etc.

Simply add your paths with a new line, save and you’re done!