You shouldn't mix memory brands. At least in my opinion, you should stick to the same brand with the same timings, speeds, voltages, and cas latency. The RAM you linked (the first set), to my knowledge, is just a set of budget RAM. If you want something good that will last, you could look into any of these:
http://www.newegg.com/Product/Produc...82E16820231166
http://www.newegg.com/Product/Produc...82E16820227269
http://www.newegg.com/Product/Produc...82E16820227267
http://www.newegg.com/Product/Produc...82E16820231166
http://www.newegg.com/Product/Produc...82E16820227269
http://www.newegg.com/Product/Produc...82E16820227267