Budget: $400
More specific use (what games, what programs): LoL,Cs Go
Planned time until purchase:1-2 weeks
Do you need an Operating System? (Windows 7 etc.): Windows 7 ( reddit )
Do you have any specific preferred components?: no
Do you need a wireless adapter? (wireless internet): no
Do you plan on overclocking, need aftermarket or stock cooler?: no
Do you need a monitor? mouse? keyboard?: no
Location/Zip (US,CAN,EU): Toronto, Canada

My Co-worker ask me to help him build a pc for his son but his budget is tight.

Thanks Guys!