$600 CA Gaming Build

Hello everyone

I was wondering if I can get some help with a gaming pc for $600 CA. This would be my first time building my own PC from scratch so all the help and advice would be greatly appreciated.

I am looking mainly for the following parts within my price:

CPU: i5 Lynnfield hopefully
RAM: G.SKILL ripjaws 4gb
GPU: a decent one that can play current games on mid to high settings

The rest of the parts just have to be compatible with the above components and all together fit into a $600 Canadian price range

Thanks a lot