If the primary purpose is gaming AND he's not overclocking, Intel is a better budget option for CPU/Mobo.
H61 Mobo (no USB 3.0 or SATA3, but you're not planning on using those anyway):
Total for both i3 + H61 mobo = $164, $50 less than the 960T+970mobo you're considering and in addition the i3 performs better in games because of the better per-core performance. Although the i3 is a dual-core, it also has hyperthreading, which will keep it competitive in quad-core optimized programs. A great way to save money on a gaming rig.
There's also the same H61 + an i5-2500
Total for both = $249
The i5 is a true quad core like the Phenom II you have selected, but more modern and far more powerful. It will be significantly better in gaming, but costs $34 more than the Phenom II + 970 & $85 more than the i3+H61.
You can also save $12 on memory (H61s are only rated for 1333mhz anyway):
And $20 on PSU (the Antec below is on par or slightly superior in quality to the Rosewill Greens):
And this 6870 is the same price after rebate (though costs more upfront) but comes with a bit quieter fan configuration:
If you go with the i3 & the stuff I added in the edit you can save about $80, which will cover the extra up-front cost on the 6870 in the edit & a good gaming mouse. I always recommend my beloved Mionix Naos 3200. Also, free shipping from us.ncix.com comes only with orders over $50, so if you get the Antec PSU but not the Gigabyte H61, there might be some shipping costs.Edited by MisterFred - 4/29/12 at 9:41am