Well... just keep in mind that with AMD, your gaming performance is going to be a lot lower. It's not a difference of just 5fps, either... it's pretty significant. But if you insist, I'll look over the other components (I don't know about AMD mobos).
CPU Cooler: If you want liquid cooling, do custom. Seriously... the Corsair "liquid cooling" doesn't even cool that much. In fact, believe it or not, usually air cooling actually keeps temperatures lower (than retail liquid cooling... I think that custom liquid cooling keeps temps lower than air). I'd suggest air, but if you want liquid... look up how to set up the system yourself. "Pre-built" liquid cooling is not very good.
RAM: Are you sure you need 12GB? I'd suggest 8GB running on dual-channel. 8GB is PLENTY for gaming, and 12 is just a strange number... usually, it would be either dual-channel or quad-channel (actually... I'm not sure quad-channel is the term).
HDD: I'd try to save some money elsewhere and try to get an SSD. A Crucial M4 should be fine... 64GB for OS and a few games, 128GB for OS, games, and apps, and 256GB for no worrying and pretty much anything you want to put on there. I'd suggest 128GB.
Oh, and the SSD is supposed to be supplemental to your 7200rpm HDD. Also, do you REALLY need 2TB? That's a massive amount of space. Do you use a lot of video editing?
Video: Meh... it's kind of old. If you want superior performance, try for these GPUs (sorted from best to worst):
1. GTX 680 - $500 (These are hard to get ahold of)
2. GTX 670 - $400 (Newly released, also hard to get ahold of)
3. 7870 - $350 (Moving into AMD/Radeon. NVidia is better 'cause of physX and CUDA cores, but if you're running a multi-monitor setup, you may want AMD)
4. 7850 - $250 (Basically, a good card that can still max out any game out there and also has a GREAT overclocking potential. So does the 7870, by the way)
I'd rank the manufacturers like this:
1. MSI Twin Frozr II OC (great cooling/OC/noise level)
2. ASUS
3. Sapphire
4. Gigabyte (really, this depends. Some cards (meaning actual chips as in 7850 vs 7870, not separate physical cards) have great cooling, others don't. Look at the reviews for more info)
5. EVGA
6. HIS
However, all six are good (with the occasional exception of a Gigabyte card here and there).
Case: Again, why Lian-Li? It's crazy expensive... I mean CRAZY expensive.
PSU: I'd suggest this one instead:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151102
GREAT PSU. Also, it's modular! And gold rated! And enough for SLI/Crossfire!
I know nothing about the monitors. Sorry
Anyway, overall, this should be fine. You'd be better off with an Intel build (look for some benchmarks. I can show you some if you want. AMD's CPUs are just terrible at the moment... they used to be competitive), but I'm sure you have your reasons. If you REALLY have the money, you could try to get a 690 GPU... but those are $1,000 here in the US, and probably aren't available in Turkey yet. I'd suggest a stronger GPU, though...at your budget, I think it would be beneficial. Overall, a pretty nice build!