My first Build with i7 3770k

H100 should work fine with a decent overclock and also try and pick up a modular psu.

If you're only going to be gaming, you can save a lot of money by using different parts.

If gaming, the 3570k will be just fine.
I suppose for video editing and other things the 3770k would also be good. You really only need it if you know you'll be using lots of threads.

8GB will also be plenty for gaming.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820147096
That Samsung set can overclock way far and is inexpensive. They're sold out in a lot of places, but if you can find them they're well worth it.

You could definitely get a cheaper board, however ASUS is a pretty respected brand.
If you don't need the Wi-Fi that comes with it, though, you could get a cheaper board from ASRock or Biostar. Highest end Z77 Biostar mobo is about $35 less than that ASUS board, and the Extreme6 from ASRock is cheaper as well.

You should check out the power supply forum in the components section. I'm not sure you would need, which is why I recommend those threads. There's a calculator made by the PSU editor and a thread for suggested PSU's.
PSU Calculator
Suggested PSU's

The Thermalright Silver Arrow is just as good, cheaper, and quieter than the H100. You can look into that, the Prolimatech Genesis or Megahalems, the Noctua NH-D14, or the Phanteks dual tower cooler. All pretty much equal.
By the way, the H100 isn't bad, it's just expensive and doesn't offer (much) better cooling than the others I listed.

Phantom has great reviews and most people on OCN like it.

What's your total budget and then the budget for the graphics card?

This is one of the appropriate sections you could put this, so you're good.

Hope I helped

The PSU would probably be overkill for the cards you're looking at paired with the low wattage 3770k. I know that the SeaSonic is a good PSU, but you might want to check the PSU calculator to see what wattage you need. I'm sure you'll be fine, but better safe than sorry.

Modular on PSU's just means you can use only the wires you want or need, instead of having all of them bundled up and using less than half of them. Saves space and looks better

If you're unsure about the Biostar, then go for the ASRock.

What resolution will you be playing at? If it's above 1080p, you might want to consider a 7850 just because it has more VRAM. If you're on or below 1080p 1GB VRAM should be fine, unless you're know you're going to play a game that uses a lot of VRAM. Skyrim (with mods) is a good example of a VRAM eater, Battlefield 3 is another.

Definitely stick with the H100. It may not perform any better than the Silver Arrow but it sure looks a whole lot better and is pretty much fool proof in installation. As for the PSU, the one you picked originally would be fine but that Seasonic is one of the best PSU's made. Modular just means that the cables are a plug-in type so that you can just use only the cables you need (beware though that some modular PSU's like the HX series Corsairs have hard-wired 24-pin and 8-pin cables).

As for video cards, if you are aiming for a $200 price range it would be hard to go against a 560Ti or a 6950....
Edited by Majin SSJ Eric - 5/16/12 at 10:16pm

Just because you have a smaller power supply does not mean your system will pull less power from the wall. PSU's only pull the power they need to pull. Power supplies are also most efficient around 50% load. I would say don't cheap out on your PSU because if that part screws up, it could take your entire system down with it.

I know you may not be implying this, but I wanted to say that the H100 is not loud at all. I have it on my PC running pretty hard and it's barely noticeable hum. It keeps my OC'ed 3770K really cool. At idle, I get down to like 25C and load from games maybe the 50s. Just wanted to put my 2c as an actual H100 user.