Hey, well honestly I have gone through everything you have listed and for the price you are working with I could not find much better. The only thing I found was this 1TB HDD on sale at Newegg that might be a bit of an upgrade. Besides that everything you have picked out cannot really be found less expensive. The drive is about ½ of the way down the page.
you could get away with a smaller PSU easily, but now that I have looked at the prices, I see that you would only save $6 by buying a smaller one. The one you originally had in mind is fine.
i would suggest a A10 but the price would be off set by the faster memory. it would also depend on what kinda of games he wants to play and at what resolution
http://pcpartpicker.com/p/GJ9A has a nice upgrade path.
or
instead you could get a cheaper FM2 motherboard of your choice
Well heres what we threw together today, He doesnt wana go with a APU and apparently he doesnt like that case @Recon-UK since it has sharp edges he heard?
Dang prices changing daily. he also wants a mousepad, HDMI cable and a wireless adapter so i guess were just over 500 at the momment.
So if I shove a 1x4GB 1600 mhz in a 4x DDR3 dual channel motherboard, the whole system will catch fire? Because I was planning on doing a 4GB stick first, and later upgrading to a 8GB system.