Help which board should I buy?

[maxboy]

Hello everyone, I'm looking for a motherboard that's reasonably priced and I'm going crazy. What I want to install on the motherboard is this:

1 cpu phenom II x3 720BE I want a motherboard that has the option to UNLOCK CORES

1 shaphire 5850 1gb gdd5 extreme I would like to put 2 more of the same in crossfire later.

I have 4gb of ddr3 1333 Kinston memory.

Well, for now, this is what I'm going to put on the new motherboard, but of course I have doubts if the motherboard I've chosen is the correct one for these components. Can you help me? I'll put the link to the one I want to buy. If you see a better one priced at a maximum of 63€, I would be grateful.

ASROCK PLACA BASE 970 EXTREME3 DDR3 ATX AM3+ :: APPInformatica.com ::

asrock placa base 970 extreme3 ddr3 atx am3+

I've seen it on ebay new for 63€ delivered to my house. What do you think?