Not getting an i7 in that rig...
That is a very poor decision. Your CPU choice is going to be top of the line CPU performance for the next 5-6 years to come. The GTX 980Ti will come and go in GPU land. Actually, in 2 years, it'll be a midrange GPU. Your i7 will be the top of the line CPU in 2 years and yes don't forget, it'll be still a top of the line CPU in 5 years. It's not going anywhere. The GTX 980 Ti will be no one in 5 years. And this is not to say I don't love the GTX 980 Ti, you'll see me hail that product all day, it's the high end card that actually feels like it is a good value.
Either way though, people don't always make the best decisions, have a great time with your rig, but it's really just the most suboptimal thing possible to not get an i7 in the high end market. I could begin to write paragraphs about it, but meh, I hope you're at least happy with the GTX 980 Ti. As you can tell, I think Nvidia did a bang out job with that card, especially now that I see the competition and have a comparison point.
I budgeted, realized that an i7 would be a better choice in the long run. I saw how relevant sandybridge was even today. I realized that a good mobo/CPU was going to last me 5 years. I knew that 3 years later I'd be wanting a GPU upgrade as a nodeshrink was bound to happen. But hey, I'm looking forward to ignoring 28nm possible. If I get the MSI GTX 980Ti, it's being sold the second the new AMD/Nvidia GPUs come out with a significant performance improvement. But I'd do that knowing I'd be losing $100-200. But most likely, I'll wait as everyone has a massive backlog of games to play, most aren't graphically intense, I can pick the ones that aren't and wait for the GTX 980Ti/Fury X successor to blow me away and get me to that lovely 4K point I want on the games I really want to play. If Direct X 12 mgpu works on the games I actually want to play, well.... I think it'll be hard for me to even get a card considering how much high end gamers will invest in mgpu setups if it works well like direct x 12 promises.