I'd say the best money I've spent in that list was going for 2400 memory (pays off huge in some games, BF4 is one for sure), and the 980OC. I had the 7950 clocked higher than stock 7970 speeds (7950 = 280, 7970 = 280X), and it would still have screen tearing and performance issues at 1440p unless I really dialed the settings down. The 980OC was a gigantic upgrade, and much MUCH quieter. The 7950 is okay for 1080p though. The storm scout case and CM 212+ are both outstanding values as well, as I don't enjoy watercooling nor do I enjoy noise.
The worst money I've spent was adding a second 840 Pro for Raid. It made a difference, but not enough to make a huge difference. I am going to replace both of them with a single 850 Pro 1TB, and unraid the 840 Pros to stick in USB 3.0 enclosures for portable storage of decent speed. I also want to install 10gbe in the house to replace the gigabit network. I also wasted money on a HD 290X when it first launched and hated it. Loud, hot, and just an overall big disappointment. I happily went back to my 7950 until the 900 series launched.







