Everything Apple (the Mac heads thread)

So I'm looking to upgrade my girlfriend's mid-2011 2.5 GHz (Core i5) iMac next week, I'm going to replace the mechanical drive with a 256GB SSD and add another 2x2GB sticks of RAM, bringing the total from 4GB to 8GB.

@amey @Soul you guys mentioned you've done the HDD/SSD swap; I have a couple questions if you don't mind?

1. Did you guys buy the suction cups? Care to point me in the direction of some that'll do the job?
   
2. Did you replace the optical drive or the hard drive?
   
3. Did you require a 2.5>3.5 drive adapter? Any recommendations? The reviews for those on Amazon are terrible.
   
4. Will I require any additional cables or can I reuse the existing one(s) from the mechanical drive?
   
   

Cheers for any help!

PS. I'll be following this guide: https://www.ifixit.com/Guide/iMac+Intel+21.5-Inch+EMC+2428+Hard+Drive+Replacement/5954