Building a system after Xmas

I am building a system after Xmas, and I am looking at the bundle on scan.co.uk under "Today Only" (the deal has been there for a while..). It is the "No Brainer" deal. I am wondering about the power supply, is it decent enough for a gaming system? I'll also be adding a few fans and a 650ti to the bundle.

http://www.scan.co.uk/products/500w-silverstone-sst-st50f-es-strider-psu-silent-80-plus-atx-12v-23-24x7-use-ready!

Thanks

Tom 

Silverstone are a great, reputable brand. As for the power supply, it should be fine once you've added the 650ti as long as you don't go overboard, I think. If you can change the power supply, I might go with some more headroom. 600-700W would be perfect.

Hope I've Helped! :)