Here's what I think about your picks:
1. It's silly to spend $300+ on an i7 3770k just for gaming. Get the i5 4670k Haswell or even the 3750k Ivy and save some money. You'll almost certainly never notice a difference performance-wise.
2. Because a 3770k is a waste and that mobo won't work with the 4670k, you'll either have to get the 3750k (that would be my choice) or find another mobo with the 1150 socket to fit the i5 Haswell. The second PCI-E slot is also a x4. I just got done helping (in another thread) determine that x4 slots make little difference in AMD Crossfire configurations, but I can't speak for Nvidia or Sli. I'd look into that if you think you might ever want to upgrade to a multi-GPU config. Truth be told, though, the single GPU you chose will have no issues for quite a while.
3. The 600T is a fantastic case--my current rig lives in one and I love it. A helpful piece of advice: the side panel window destroys the case's airflow. Use the mesh panel instead and mount 4 120mm fans on it. These will blow directly down onto the GPU, Northbridge, RAM, and VRMs. That's much easier than mounting fifteen tiny fans to your board if you ever start to OC. Combine those 4 fans with the 200mm front intake (remove any drive cages you aren't using in the bottom front as they can block airflow), a 200mm top exhaust, and a rear 120mm exhaust and you'll never need to worry about case airflow or component air cooling. Ever. You will, however, need to buy or rig dust filters for the side panel fans if you don't want dust bunnies the size of Furbies to grow in your case. I use window screen mesh. Even with filters you'll have to clean the guts often. That's the downside of hurricane-level air cooling.
4. Never, ever consider building a gaming rig without an aftermarket CPU cooler, especially with Intel chips. The CM Hyper 212 Plus (or Evo with a slightly better fan and lower weight) is amazing and costs about 30 bucks. Trust me, it's worth it.