We are on a very tight budget here, i didnt include a dvd-drive, it's already becoming obsolete today, you can do every job you want without it. For example he can purchase gta 4 from steam. That's what i would get (i highly recommend he saves another $20 and get a pentium 3220/3420 instead of the celeron on the build below):
[PCPartPicker part list](http://pcpartpicker.com/p/QbtGnQ) / [Price breakdown by merchant](http://pcpartpicker.com/p/QbtGnQ/by_merchant/)
Type|Item|Price
:----|:----|:----
**CPU** | [Intel Celeron G1820 2.7GHz Dual-Core Processor](http://pcpartpicker.com/part/intel-cpu-bx80646g1820) | $44.99 @ Newegg
**Motherboard** | [MSI H81M-E33 Micro ATX LGA1150...