How much power does my system need?

[Dark Light]

My PSU died, I am still in the process of getting it replaced. I am going to a LAN next weekend and I might need to borrow a PSU from someone. So what is the minimum power that my system needs to run while maxing out?

3930k Stock
16GB DDR3 2133
4870 1GB
320GB HDD
60 GB Vertex 2 SSD

Thanks.

 

[RJC]

Quality brand 500w PSU will be fine.

 

[Ace Modder]

550w would be more than ample from a decent brand.