Adding memory of different brand -Good or Bad>?

I just recently went 64 bit and now have a lift on my 4GB limit. I cannot afford much over $40 at the moment and was looking at getting this memory to go with what I already have:

G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM 9-9-9-24 1600 (PC3 12800)
http://www.newegg.com/Product/Produc...82E16820231193

I already have this memory installed:
2x Kingston Technology HyperX Blu 2 GB 1600 (PC3 12800)
http://www.newegg.com/Product/Produc...82E16820104219


My question is will these different RAMs' work in conjuction together on this motherboard:
ASUS M5A97 LE R2.0 AM3+ AMD 970 ATX AMD Motherboard
http://www.newegg.com/Product/Produc...82E16813131872