It really depends on what games he wants to play. There is no definite spec of a "gaming computer". For example, recent releases such as Battlefield 3 and Skyrim need more powerful hardware than, for example, Call Of Duty : MW3. The main requirements for top games these days seem to be a quad-core CPU and a fairly beefy graphics card. My system uses an Intel core i5 and an nVidia GTX560 Ti graphics card, which is recommended for decent Battlefield 3 performance, and is a very good gaming computer.
As I built the whole system myself, everything would probably cost over £1,000 separately. Similar systems already built seem to cost about the same, as far as I can tell, so I don't think he would really save that much. But he would learn a lot more by building it himself !



