I destroyed my right fan. Then I noticed I do rarely use my CD. So why not to replace my CD with an SSD and put all the system and software on to the SSD and leave all personal data onto the original HD? The speed of my mac is now incredible. For example: CATIA CAD in Parallels with starts now within 20 seconds instead of 3 minutes! (MacBookPro)
Without Problem! Only the screwdriver set i got additionally with an iPhone front cover is really a cheap solution and is worth nothing. But the iPhone front cover, the fan and the SSD installation set work well!
Don't use the screwdriver from iFixit. You damage your screws. But repair guide and spare parts are excellent! Specially for the iPhone front cover I got few weeks ago.