To be honest, I think it would be good to buy a bundle. Everything included most of the time, and good for beginners while saving a little.
This one is a bit on the higher end
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Galaxy card though? Meh. I do love the 570gtx but I don't recommend that manufacturer at all.
Things to look for in a motherboard besides price:
Front side bus speed - rate of data transfer from processor to memory and graphics.
Slot types - AGP or PCI express. Depends of which card you want to use.
Expansion slots - PCI slots for additional cards such as sound, or network.
USB - number of ports and locations matching to case
Overclocking - yes.
Maximum amount and type of RAM - for gaming, I would choose speed over quantity with a minimum of 6 gb.
I just want a good game, music internet computer.
noone uses AGP anymore.