That build looks very similar to what I just put together. A couple opinions:
1) Go with NVIDIA if you're doing 2 cards, not only is the price not a very big deal when you consider you total system cost, but SLI has better support and scaling, comes with better features (experience, shadowplay) and they will run considerably cooler (I got blower coolers with my SLI 780ti's).
2) If you aren't doing any video editing/3d modeling you can probably get away with an i5-4670k, but I understand if you want the flagship Haswell. I plan on doing more video editing myself with Shadowplay so I went with the i7 but it's a $120 premium for the HT, the gaming and OS performance is exactly the same.
3) Grab a Corsair 750D case instead of the HAF and take the money you save and buy Noctua NF-A14 flx case fans to replace the stock fans. The case will be quieter, look cleaner, be much easier to cable manage and the replacement fans will keep it cooler (and allow you to set up positive airflow with a fan controller if you get one). I built my new machine in that case and it's awesome. You also don't get the impossible to dust front panel (the HAF has those square molding that are impossible to clean).
3) Go with a 2x8GB ram kit, the performance isn't really any different and it will make sure you don't have RAM clearance issues with your cooler. If you want to water cool I would go with the Cooler Master Glacer 240L, it's the replacement in the US for the Swiftech H220 and it's way better than the one you have on there. I'd take a Noctua u14s over the ones that seem to have high pump failure rates. Just my personal opinion though, it's up to you.
I also went with Samsung 840 SSD (pro 256gb) and WD black HDD (2tb) because I wanted the best SSD for performance and a brand I trust explicitly for my storage drive. I've had great luck in the past with WD so I gave them the benefit of the doubt and paid a little more. If you're interested in my build:
Intel i7-4770k
Asus Maximus VI Formula
Corsair AX1200i
Corsair Vengeance Pro 16gb 1866
Corsair 750D
2x EVGA GTX 780ti superclocked (reference cooler)
Samsung 840 pro 256gb
WD black 2TB HDD
Noctua u14s with extra NF-a15 for push/pull
Prolimatech pk-3 thermal compound
3x Bitfenix spectre pro LED (140mm exhaust for top/rear)
2x Noctua NF-A14 flx (140mm intake for front)
1x Noctua NF-F12 (120mm bot intake)
I could have dropped to the Hero, went with the i5, and gotten the AX860i instead but I decided to go all out on z87. I had a bit higher budget than you so I also got an individually sleeved Corsair cable kit, a new mouse and a monitor, but your machine will be every bit as fast. The 780ti's are SCREAMING, they overclock decently too. I've got a pretty modest +75mhz on my core's but I just wanted to get a tiny bump, not go for aggressive overclocks on them. If you want to see pictures of my build PM me and I'll link you to my build thread on another forum since I don't want to repost everything...