TRIM and SSD Question

Hi all,
I have just bought:
Crucial CT240M500SSD1 2.5-inch 240GB M500 SATA 6Gb/s Internal Solid State Drive 
for my Macbook pro 2009 model. I plan to install OSX Mountain lion on it (OSX 10.8). I was woundering after reading about TRIM etc, when i have plugged the SSD in, and installed the operating system do i need to enable TRIM or will it be on by default?
Thanks

You certainly can and many do. 
I have my own way of setting up a new drive as shown below.  Mainly because I want a fresh start.
Power down my computer and remove the power charger and dispense static electricity.
1.  Format new SSD or HDD (Mac OS Extended Journaled).  External enclosure is needed for this.
2.  Remove the internal HDD (the one being replaced) (FIRST dispense static electricity).
3.  Install new internal drive (SSD or HDD)
4.  Install OS on new SSD or HDD
5.  Install apps
6.  Connect the drive removed and move data, pictures, videos, etc to the new drive (use external enclosure).
Make sure you have a solid backup of your important data

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