Hello I want to replace my SUPERDRIVE with a SSD drive. I have a 24" iMac 2.66ghz. It's the last 24" iMac released (2009). I still need my 640gb HD with it for storage. The Superdrive port is SATA 2. The "Crucial RealSSD C300 64 Go" is said to go as fast as 335 Mo/s. - Is it compatible with my iMac ? Will it fit ? - How fast will it be inside my iMac ? full speed or less ? - I couldn't find a teardown of the 24" iMac. Only for the 20". Is there a big difference ? Thanks !