[New Gaming System Build] Help on Deciding & Reviewing

Dear Tom's Hardware Members,

I am currently a new member on this wonderful site and I would gladly appreciate help on my
new Gaming/General System that I will be building in the next 1-2 months.

Where I will Buy from:
I live in Australia and the website that I will be purchasing my components from is,
www.tigerdirect.com

Note: Yes, I will be the shipping parts to AUS because it actually ships to Australia unlike many US stores and I simply cannot find a cheap store in Australia. If you have any better websites with exceptional customer service, reliable and are cheaper then TigerDirect please feel free to recommend them. (Note: I'm not 100% sure if the Shipping Fees and Price in total will be cheaper than buying directly from Australia) Please Help me on This.

What this System is build for:

This is a build that I hope will last 2-3 years and will be used for Gaming and General usage.
I am into both RTS/RPG and FPS games. I will also be using this computer to accomplish High-School homework and assignments.

E.g: DotA, WoW, CS:S, CS1.6

Note: I am not a hardcore 24/7 gamer but I will Overclock my CPU and maybe Crossfire my Graphic Cards.

My Computer Parts:

Case: Nzxt Lexa S

MotherBoard: Asus Crosshair III Formula
Unfortunately I can't find this mother board on TigerDirect anymore and I would appreciate if someone could recommend another board with pretty much the same features. Also it would be thankful if the motherboard would support CrossfireX as I will be connecting two 5770's
Edit:According to comments I might just go with one 5770 or 5850.

CPU: AMD Phenom II 955 Black Edition

Graphics Card: 2x ATI Radeon HD 5770 or 5850 (I will Crossfire these in the future)

Moniter: Acer H233Hbmid 23" Widescreen LCD moniter

CPU Aftermarket Cooler: Thermaltake SpinQ CPU fan

I will be OverClocking my CPU to approxmately 3.7Ghz and I definately need a good CPU cooler but I am not sure if the SpinQ will fit in the Nzxt Lexa S case. (Help Needed)

HDD: Western Digital Velociraptors 10,000rpm 300GB

Optical Drive: Plextor Px-B320SA Blu Ray, CD, DVD Read and Writer (LightScribe Inc.)

Memory: Kingston HyperX 4GB DDR3 1600mhz RAM

Case Fan: Ultra Performance 120mm Dual-Ball bearing Case fan

Note: Getting a case fan because there are 5 fan slots in the Nzxt Lexa S case and only 4 supplied.

Power Supply: Corsair 750w Modular Power Supply

Thermal Compound OCZ Freeze Thermal Compound

Note: I wanted a cool PC so I thought of getting rid of the stock paste and adding my own after market one. Only problem is that I need to find a Thermal Paste remover
(Need Recommendations)

Keyboard: I can't decide which keyboard to use but the ones I've been looking at are,

Razer Tarantula-
Razer Lycosa (Mirror Edition)-
Logitech G110
Logitech G15

Note: Please help me justify the PROS and CONS of each keyboard and refer to the System section for what games I play. Thank you

Mouse: Logitech G500 Gaming Mouse

Mousepad: Razer Goliathus Fragged Speed Edition

Headset/Headphones: Logitech ClearChat Comfort Headset

Note: I might or might not buy these since I have a decent headset already. (Feel free for recommendations)

P.S Please note that I am looking at components that are Price: Performance wise. So if you are making recommendations please make them reasonable.

Conclusion:
Overall, I'm a first time builder and so please do not recommend things that are too over complicated to install or use, the simpler the better. I have done extensive research and I am positive that the components I chose are compatible. But feel free to correct me. Oh and if I did violate any rules by accident by posting in wrong sections then please correct me.

Thank you.

P.S I'm apologise for such a long thread but I do wish my build to be mistake-less

Dont open multiple threads on the same topic...
Check the other thread...

This is true...but you will have a larger smile on your face with a 790FX

But seriously, he is correct.

You are welcomed and glad we could help ^^