I agree, drop to an i5 750 for your gaming, go with 4gb of G Skill Ripjaw (or ECO) RAM with lower latency than Corsair.
Replace the motherboard with a P55, the Asus P7P55D E Pro is the best you can get with XFire and USB/SATA III, though you can go cheaper if any of those features are unimportant to you (this mobo is still cheaper than an X58 board)
You have a real nice system so I would be going with a good quality case - the HAF 922 is excellent.
1000W is way more than you need, I would drop to 850W (if you plan on XFire some time). A quality 850W PSU (Corsair or Seasonic for example) will be better than a lower quality 1000W PSU
I wouldn't say that that case is bad quality, but it's expensive for the same quality/features that can be found on other cases (apart from looks I guess). Thermaltake PSUs, while not the worst out there, aren't the best quality either.
In regards to XFX vs Sapphire, both are good. They both offer decent cooling and good warranties. I'd go for the XFX if it's not that much more expensive (<$10-15 US) otherwise get the Sapphire if it's much cheaper.
If I can (at least partially) answer your mobo question:
They're different chipsets. (P55 vs X58) Are you asking about chipset differences?
I do agree that X58 is better for high-end graphics, due to P55 not having the same capabilities (x8, x16). If budget's no problem, then X58's the way to go, or you could buy a 980X with Tri SLI, Custom watercooling and case, 24GB of RAM 24 SSDs in RAID......
But anyway, sounds like X58 is what you'll be wanting on this build. I don't know much in the way of top-notch components, but yes, that mobo is.. well, top end
Intel i7 930
Asus Rampage III Extreme (possibly change this, but you said budget np, so doens't really matter I guess)
4GB 1600 RAM; not the RAM you listed there because the timings aren't very good (only 9-9-9-24) If that's the best timing you can get, then once again don't worry about it, but some lower timings would be good.
Either XFX or Sapphire 2GB 5970 (doesn't really matter which)
Seagate 1TB (do you know what model this is?)
Intel X25-M Mainstream SSD 2.5 64 GB
Any decent DVD drive
Win 7 HP 64-bit
If you want your CPU REALLY cool, then you could switch to one of the really good cooler (with a price rag naturally)
I'm pretty sure the other Noctua I listed will keep the CPU cooler than the one you listed, but that said, your isn't bad.
With the case and PSU, if that's really the best you can get, I guess it'll have to do. Neither of them are terrible, it's just that they could be better. If you're happy with it and you can't get better then there's nps.
(getting late, getting off the comp for the night, so I might not answer for a while if you're looking for a quick response back.)
amazon really getting my ssd slow
i went with sapphire tho and i will start building asap
since my os will be in ssd ... Have to wait xD
another thing, now i am between stock clock if 930 or oc it to 3.8 or less. Depend on ffxiv .
I dunno whether I got with Stock i7-930 2.8GHz
or I overclock it to 3.8 GHz, asI think both 2.8GHz & 3.8GHz will bottleneck my VGA but putting my game under solid 60+ FPS or 120+ FPS won't effect me since I won't see the difference with naked eye right?
unless you guys got another opinion, not to mention my sole purpose of this rig is FFXIV HARDCORE !!
If you do a moderate overclock on stock voltage (say, 3.6-3.8Ghz, but this varies between individual CPUS) then performance should increase slightly (and almost unnoticeably) in most games, but general use will be better and there are a select few games out there which benefit a bit more from CPU. Either way, if you stay at stock voltage and get the overclock stable, then go for it definitely. A bigger overclock with higher voltage will run hotter and die quicker, so keep that in mind if you plan to change the voltage while overclocking.
Personally I'd just find the highest stable overclock on stock voltage, but each to his own.