For a budget Gaming setup, including the PC, how much money would that be for a low budget Gaming setup, and can you suggest any part list for the setup?
Something in the $600 range.
Here is an older toms budget build: http://www.tomshardware.com/reviews/build-budget-gaming-pc,3943.html
Prices will have changed by now.
What I like about a G3258 is that it can be easily upgraded to i3,i5,i7 on the same motherboard.
If anything, I would opt for a 500w psu to allow for a future graphics card upgrade.