GPU and MOBO Advice

[Suisiders]

Which one would be better for my setup? Is the extra $30 for the Gigabyte motherboard worth it over the ASRock motherboard? For the graphics card should I buy?
-------------------------------------------------------------------------------------------------
My needs:
Resolution: 1 monitor @ 1920x1080p
Games: BF3, Metro 2033, Starcraft 2, Guild Wars 2, Witcher 2 and etc.
Budget: $900 after rebates
OC: 4.5Ghz
Xfire/SLI: Yes
--------------------------------------------------------------------------------------------------
Which motherboard?
Gigabyte GA-Z77X-UD3H $130 w/rebate
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128544

ASRock Z77 Extreme4 $110
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157293
--------------------------------------------------------------------------------------------------
Which graphics card?
Gigabyte Windforce 3X 7950 OC $280 w/rebate and 3 free games
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125414&Tpk=Gigabyte%207950

SAPPHIRE Vapor-X 7950 OC $330
http://www.amazon.com/Sapphire-DL-DVI-I-SL-DVI-D-PCI-Express-11196-09-40G/dp/B009MML1UA/ref=sr_1_1?ie=UTF8&qid=1351718929&sr=8-1&keywords=sapphire+vapor-x+7950

SAPPHIRE Dual X 7950 $285 w/rebate and 3 free games
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202006&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3938566&SID=

MSI 7950 Twin Frozr III $305 w/rebate and 3 free games
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127667&Tpk=MSI%207950%20Twin%20Frozr%20III
---------------------------------------------------------------------------------------------------
My Rig:
CPU: i5 3570k $170 @Micro Center
MOBO: Still deciding
RAM: Patriot Viper 3 8GB 1600Mhz CL9 $26 @Newegg
COOL: Cooler Master Hyper 212 Evo $27 @NCIX US
OS: Windows 7 Home SP1 64-Bit $100 @Newegg
GPU: Still deciding
CASE: NZXT Tempest 410 $55 @Newegg
PSU: Corsair TX750 V2 $70 @Newegg
HDD: Samsung Spinpoint F3 1TB $70 @Newegg
Total: $518
---------------------------------------------------------------------------------------------------
Discounts:
-15 off Mobo/OS Combo
Total w/rebates: $503

 

[g-unit1111]

Go with the UD3H and the Vapor X - that will be a better combo in the long run.

 

[Suisiders]

Best answer selected by suisiders.