R, Spark, and TextMate

I've been keeping my eye on Spark for a while now, and decided to take the plunge recently after having to do some brief R analyses that were not that complicated and were perfect for Spark.  I use TextMate as my R IDE, and I wanted to run my scripts from TextMate right into Spark, and the following are a couple of tips & tricks I found on how to setup everything so that you can start Spark from a command-R (⌘-R) shortcut.