Spend a bit more and make a better build.
PCPartPicker Part List
will this build work ?
now it will.
Yes it will work. No it's not the right list, see test19's changes. Although I'd advise a beefier CPU cooler for that fairly hot CPU. Scythe Mugen 5 or Thermalright Macho would be the usual mid-range cooler suspects.
PCPartpicker is using a 95W "TDP" rating although the 9900K will (briefly) demand 160W, so I'd stay away from 500W.
I'd probably want to spring for something like this
even though I'm the last to want to overspend on power supplies. On the other hand, the minimum draw (which is what you will likely be pulling while websurfing) is 104W. That will be 20% of the 500W's draw and probably be somewhat efficient. Don't count on the 750W supply being any good at that range, but will be well in the 80% range during gaming. Don't skimp on your power supply.