Hi, I've had a Mid-2011 iMac for a few years now and recently have noticed its become a bit slow in some tasks. I have already upgraded the ram (think i have 24gb) and was wondering if it would be worth it to upgrade the HD to a SSD? I see that OWC has upgrade kits. I realize the machine is getting old now so I dont want to just throw money away, but it still seems to run well otherwise. Also, the machine is just for general usage (internet, office, etc.). No gaming or other high performance items. Any opinions are appreciated. Thank you.