Please Help Me Build This Thing Right

[buzzkilla428]

Case: Azza Orion Gaming Mid-Tower Case with See-Thru Side Panel [-26] (Black with Red Lightning)
Internal USB Extension Module: None
Neon Light Upgrade: 12in (Red Color) Cold Cathode Neon Light [+10]
Extra Case Fan Upgrade: Default case fans
Noise Reduction Technology: Anti-Vibration Fan Mounts [+9]
Power Supply Upgrade: 800 Watts Power Supplies [+65] (CyberPowerPC XF800S Performance ATX 2.0 Power - Quad SLI Ready)
CPU: Intel® Core™ i5-660 3.6 GHz 2M L2 Cache LGA1156 [+94]
Venom Boost Fast And Efficient Factory Overclocking: No Overclocking
Cooling Fan: Asetek LCLC 120 Liquid Cooling System 120MM Radiator & Fan (Extreme Cooling Performance + Extreme Silent at 20dBA) [+20]
Motherboard: [CrossFireX] GigaByte GA-H55M-S2H Intel H55 Chipset CrossFireX Support DDR3 LGA1156 mATX w/ Onboard Graphic, HDMI, DVI, 7.1 HD Audio, GbLAN, HDMI, USB2.0, SATA-II, 2 Gen2 PCIe & 2 PCI
Memory: 4GB (2GBx2) PC1333 DDR3 PC3 10666 Dual Channel Memory (Corsair or Major Brand)
Freebies: None
Video Card: NVIDIA GeForce GTS 250 1GB 16X PCI Express [+58] (Major Brand Powered by NVIDIA)
Video Card 2: None
Video Card 3: None
Dedicated PHYSX Card: None
Free Game: FREE GAME - Street Fighters IV
Multiple Video Card Settings: Xtreme Performance in SLI/CrossFireX Gaming Mode Supports Single Monitor
LCD Monitor: None
2nd Monitor: None
Hard Drive: Single Hard Drive (750GB SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD [+16])
Data Hard Drive: None
Hard Drive Cooling Fan: None
USB Portable Drive: None
Optical Drive: LG 22X DVD±R/±RW + CD-R/RW Dual Layer Drive (BLACK COLOR)
Optical Drive 2: None
Sound: HIGH DEFINITION ON-BOARD 7.1 AUDIO
Speakers: None
Network: Onboard Gigabit LAN Network
Modem: None
Mega Notebook/Netbook/Server Bundle: None
Keyboard: Xtreme Gear (Black Color) Multimedia/Internet USB Keyboard
Mouse: XtremeGear Optical USB 3 Buttons Gaming Mouse
Gaming Gear: Logitech Dual Action Gamepad [+18]
Extra Thermal Display: None
Wireless 802.11B/G Network Card: PCI Wireless 802.11g 54Mbps Network Interface Card [+19]
External Wireless Network Card: None
Wireless 802.11 B/G/N Access Point: None
Bluetooth: None
Flash Media Reader/Writer: INTERNAL 12in1 Flash Media Reader/Writer [+10] (BLACK COLOR)
IEEE1394 Card: None
USB Port: Built-in USB 2.0 Ports
Operating System: None - FORMAT HARD DRIVE ONLY [-83]
Office Suite: None
Ultra Care Option: Ultra Enhanced Packaging Solution - Protect Your Dream System During Transit [+19]
CoolerMaster Thermal Fusion 400 Extreme Performance CPU - Thermal Compound Optimized for Thermal Dissipation [+10]
Service: STANDARD WARRANTY: 3-YEAR LIMITED WARRANTY PLUS LIFE-TIME TECHNICAL SUPPORT
Rush Service: NO; READY TO SHIP IN 5~10 BUSINESS DAYS


I KNOW THIS IS A LOT TO ASK BUT I KNOW NEXT TO NOTHING ABOUT COMPUTERS. IT WOULD BE GREAT IF ANYONE COULD OFFER ME SOME FEEDBACK.

My plan is to get this computer now and in a month or two upgrade it a little bit. I intend to add a second video card of the same make and model, four more gigs of ram, and add windows 7(possibly another hard drive). I don’t want to find out after I have it shipped that I can’t add the for-mentioned hardware. So my questions are as follows:

-Will this setup have enough power for the cards? Is it too much or too little?
-Will this motherboard be ok for? 8gigs(4 more)? 2nd hard drive? 2nd video card?
-Will this case get too hot?
-Will this liquid cooling system help/is it worth it?
-Do I use x-fire/sli gaming mode for 1 monitor OR non- x-fire/sli for 2 or more monitors?
-Is the onboard gigabit LAN thing enough?
-What about the wireless?

SERIOUSLY, THANKYOU AHEAD OF TIME FOR ALL YOUR HELP.
This is my first computer FOR me BY me. I want it to be well put together

 

[buzzkilla428]

ALSO THIS IS A GAMING COMPUTER AND I PUT IT TOGETHER ON CYBERPOWER. I WOULD LIKE TO KEEP BTWN 800-9OO BUCKS THANKS