1. 120gb Patriot Pyro SSD - primary OS drive
2. 500gb Seagate Momentus XT Hybrid drive - secondary drive
3. Superdrive or optical or CDROM is now GONE - external enclosure
on my Macbook Pro mid-2011 model.
You need to get this caddy: http://www.newmodeus...products_id=410
The above caddy is the cheapest with good build quality and good for heat dissipation.
There is another model named OWC Data Doubler (http://eshop.macsale...ting/DDAMBS0GB/) but I didn't like it because more expensive and made out of plastic, seems flimsy and breakable.
Anyway, get one of the caddy and youtube how to replace the superdrive: https://www.youtube....h?v=Rbx6C-PlZZw
Voila! Now you have ample of storage space in your MbP.
My lappy is flying with all these storage and SSD. I'm loving it.
Edit: See screenshot for my final product.