1155 motherboard

HI there, im fairly new to computer building (3 to 4 years of it) and my cousins friend just bought a cheap desktop setup on eBay, (case,Mobo,CPU,RAM, Built in graphics) and wants to do some gaming on it, hes TV is only 720p and this is what iv gone with as advice for him on buying as an upgrade...

Hi all, Appreciate any assistance (or redirection if necessary) that anyone can offer please. I need to replace an obsolete MSI P67A-C45 motherboard, other components listed below. The question is: is there a product out there that can support this, or do I need to update the entire system...