I think you should go for an AM3+ board, since you can upgrade to one of the newer chips in the future, OCing a little wouldn't hurt either. I'll assume that you only use the 750 Ti, this board should be enough for most people's needs.
http://www.amazon.com/Gigabyte-6Gbps-Socket-Motherboards-GA-970A-DS3P/dp/B00CX4MUCC/ref=sr_1_2?ie=UTF8&qid=1451687967&sr=8-2&keywords=am3%2B+970+motherboard