I suppose, beauty is always in the eye of the beholder. But more so these are friggin tanks. The fit, finish, engineering, QC, material and craftsmanship make the silly marked-up boxes imported from China and Taiwan (Lian Li and Silverstone) look comical.
Why do you need a case built like a tank? Are you going to move somewhere? Are you going to transport it in a mobile server? Material? It's made out of aluminum, like everything else on the market
(at least, primarily).
The Silverstone I own is a very nice case. And how exactly do they look comical? I think some of those CaseLabs cases look silly with its unnecessary thickness and with some of them having 4 fan mounts with 8 fans on a radiator. You want comical? The original Level 10 is lolwut.Anyway
Op, your selections look good. I would suggest though the Radeon HD 7970 GHz edition for consideration, since AMD dropped the price and the most recent drivers for it bring its price/performance ratio even further than the GTX 670 at times.
As for your other questions:
1. Which Case would you recommend? (Please bear in mind that while I'm primarily looking for great cooling and features, I also want it to look good)
If you want my opinion, I like Silverstone. If you can manage the clearance issue with the top 5.25" bay, the FT02 is a solid case. Clearance issue being that a regular DVD drive will have about a half inch or so before it hits the lower expansion slot area.
2.(a) Which Power Supply would you recommend? (I can't decide whether to get a fully modular power supply or not.)
Seasonic. Always. If you can't find it for some reason, other brands I would go to are Antec and Corsair.
2.(b) Is 750W enough if I get two graphics cards and overlock, or should I get 850W or even more?
That might be good for SLI or Crossfire. I'd feel more comfortable with a 800W.
3.(b) Is there any point getting a thunderbolt board in preparation for the future, or am I just wasting my money?
Currently there's no point in getting Thunderbolt. As a data only interface, the only thing that uses it right now for such is hard drives, which USB3.0 does a good job at providing enough bandwidth already. For a data + display interface on a laptop, it makes more sense. You can daisy chain your displays and an external hard drive and connect it to one cable to your laptop. But on a desktop... I don't really see a point.
4. Which CPu Cooler would you recommend? (Is the H100 overkill?)
Cooler Master Hyper 212. H100 is if you plan on heavy overclocking... but even then coolers like the 212 can handle the task just fine even at an overclock to 4.2GHz
5. Which Memory Kit would you recommend? (Is there no difference between 2133mHz and 1600mHz for me and is 2133mHZ therefore a waste of money?)
However much you need in DDR3-1600 at most. Most programs don't gain any performance when you increase the RAM speed. Not to mention, you don't even get that speed from the get go, you have to tell it in BIOS.
6. Which SSD would you recommend? (I'm heavily leaning towards the 840 Pro the only issue is when it will be available for me to purchase. So is it worth waiting and will it be much longer?)
I'm all for Samsung 830s if you can find them. If you can't wait for the 840s, Intel's 330s are also good.
7.(a) Which Graphics Card would you recommend? (I'm heavily leaning towards the EVGA GTX 670 FTW, my main problem is whether the Signature II Edition is much better to justify waiting untill mainstream consumers can get their hands on it and paying more?)
7.(b) Should I get one or two graphics cards? (In other words, should I just get 1 now as that will be enough for todays games, and then get another in the future when I need it and it's cheaper?)
I'm partial to EVGA, but ASUS is also a good brand to go to. The 670 for sure, however, as mentioned, AMD dropped the price of the 7970 GHz Edition. So if you want price/performance, that goes to the 7970 now. But I don't think it's as drastic as say the price/performance ratio of the 670 versus the 680 (the 680 is a tough sell because it performs 10% better, but costs 25% more)
You only need two graphics cards if you're pushing higher than 1920x1200. Or if you're using two higher mid-range cards. One is fine for 24" monitors and below.
8. Do I need additionally cooling such as extra case fans or liquid cooling systems for the graphics cards and what not?
No. Liquid cooling is very hard for me to recommend, since you'll need to spend at least $200 on a full kit for one card, and assuming decent cooling at 25C ambient, you'll be dropping like maybe 10C-15C. Plus, it's also hard to get rid of the card if you ever want to upgrade. Case fans perhaps, if there's a spot next to the graphics card and it should be pointing in.
I suppose the 10-15C drop is nice, but keep in mind of the other things you have to worry about when having a liquid cooling setup. Not to mention your graphics cards are probably going to sit idle most of the time anyway.