Getting drush to work on my MacBook Pro...

I had the pleasure of being introduced to drush at this past meetup, and wanted to provide some detail that might serve someone else.

I run a MacBook Pro, and MAMP as a local development server.

I followed Mike's recommendation of using a path alias to the actual drush directory, so that it would be accessible from Terminal:

I placed the uncompressed drush directory in:
/Users/ben/Applications/
and ran the alias script, following Mike's recommended course of action:

"3. (Optional, but recommended:) To ease the use of drush,
- create a link to drush in a directory that is in your PATH, e.g.:
$ ln -s /path/to/drush/drush /usr/local/bin/drush"

So I ran in Terminal:
sudo ln -s /Users/ben/Applications/drush /usr/local/bin/drush
Entered password, Return. No complaint.
When I try the command, it complains about no such command.
I checked the /usr/local/bin/ directory and drush is there...
But no go.

So, I did the following that I got off the drupal site (JayKayAu):

1. Download drush.tar.gz to your desktop (or wherever)
2. Jump across to the Terminal
   cd ~/Desktop
3. Extract it with
   tar -zxf drush.tar.gz
4. Move it to /usr/local/lib
   sudo mv drush /usr/local/lib/
5. Make it executable
   sudo chmod u+x /usr/local/lib/drush/drush
6. Then stick it in /usr/bin/ so that you can run it from anywhere
   sudo ln -s /usr/local/lib/drush/drush /usr/bin/drush

drush was found but getting a memory error, so I needed to edit my php.ini which was in my MAMP install directory /Applications/MAMP/config/php5.2

Didn't know how to use vi, so used Textwrangler instead (since it can see invisible files).

Edited the php.ini for both php5.2 and php5.3 directories:

1. Changed memory_limit to 256M
2. Changed max_execution_time = 90
3. Changed max_input_time = 180

WORKING!

Hope this helps someone else.