Finally retiring my iMac 24" 2.33 GHz Intel Core 2 Duo (Late 2006) 2GB RAM and NVIDIA GeForce 7600 GT 256 MB with Mac OS X Lion 10.7.5. ...She is still working, but has really slowed down and no longer supported. I bought a used one off eBay! Here is what I bought with my new used setup. It has been so long. But, I had no reason to get another since my 2006 has been tried and true! It too was my first Mac! iMac 27" (Late 2013) OS X El Capitan 10.11 3.5 GHz Intel Core i7 16 GB 1600MHz DDR3 3 TB Fusion with 128GB SSD Nvidia GeForce GTX 780M 4 GB Wireless Keyboard Wireless Magic Mouse Wireless Magic Track Pad Balance of the Apple Care Warranty until September 2017 What can I expect with my new setup? It has 10.11, should I update software right away? Issues, or wait?