Trying to decide on which motherboard i should buy to support the i5

This is my first build, i really can't decide on which motherboard to buy
at first i was considering getting the

GIGABYTE GA-P55-UD3L V2.0 - Socket 1156 - Chipset P55 (http://www.amazon.co.uk/GIGABYTE-GA-P55-UD3L-V2-0-Chipset-Syringe/dp/B0041HN89I/ref=sr_1_4?ie=UTF8&s=electronics&qid=1283622959&sr=8-4)

until i found this :

Gigabyte SKT-1156 GA-P55A-UD4 Motherboard (http://www.amazon.co.uk/Gigabyte-GA-P55A-UD4-SKT-1156-Motherboard/dp/B002UX9IB2/ref=sr_1_1?s=electronics&ie=UTF8&qid=1283967004&sr=1-1)

i know that i need a socket 1156 and it must support ddr3 although i'm not sure if i should buy the first one because
it doesn't have usb 3 or the increased SATA speeds (6gb/s)

i am saving and have around £110
should i spend more and go for the Gigabyte SKT-1156 GA-P55A-UD4?
i'm aiming for a gaming PC, so advice would be appreciated or an alternative mobo that is appealing to me
#note i'm not going to go £200+ for a mobo.

I already have the following hardware :

2 x GIGABYTE HD 5770's (i plan on being able to crossfire)
Intel i5 processor w/ stock fan
4 x 1GB ddr3 ram sticks
SPIRE 650w PSU

i'm using my old hdd and dvd writer

I have already spent around £700 already so a cheaper mobo would be great,
i suck at looking products up and i'm not very familiar with the motherboard scene.

Asus P7P55D-E pro

http://www.newegg.com/Product/Prod [...] 6813131621

here's a great review

http://www.thinkcomputers.org/asus [...] rd-review/

Too bad you already have an i5 cause newegg pairs it with the i5760 in a good deal.

Read the review. It has some very nice features, will allow you to do crossfire, has true 3.0 ubs, overall good specs and performance for the value. Anyway check out that review they can explain better than me.

If it's more than you were planning on spending you really wanna think about it and maybe save up a bit more - the MOBO is the brain of the computer. get a good one.