Help upgrading ram

I am upgrading my ram for the first time, I am currently at 4 gigs and I am going to add 8 more gigs to it. I was wondering what ram would be the best for my mobo. I know my mobo supports ddr3 but I am not sure if there are any other factors I need to know. My mobo is a msi 760GM -E51, 780G. Would appreciate links to some compatible ram preferably 70 bucks and under as I am under a budget thanks in advance.

http://www.msi.com/file/test_report/TR10_2527.pdf

Compatibility list for the 760GM-P34 (FX)

A module that's not on the list might work, but hasn't been tested

You can run Speccy and find out what current RAM is installed and get the same brand, all DIMMs should be the same (brand, speed, type) if possible.

@EducatingU_PCMR:

Thanks for your help, but do you think this http://www.newegg.com/Product/Product.aspx?Item=N82E16820231538&Tpk=gskill%208gb&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=6146836&SID=i8cou7qgff000a1700053 would also be a good buy, I know its not on the list but will it still be compatible

It's a good buy, G.Skill makes good quality RAM.

@bigboss5ak you've got already 2 great answers, I've got nothing to add, but to tell you to go ahead and order that kit..

It's good memory, I don't know if it would work, you can always return it.