Help with AMD gaming build

I am trying to select the core components for a mate who is wanting to stick with AMD and will be upgrading from socket 939/2500+@3200 & ati9800pro. He won't be wanting to spend a mountain of money. He will be expecting to play the latest games at decent frame rates on a 22" 1680x1050 monitor. Some upgrade potential is nice to have so I was looking at AM3 ready motherboards options. Overclocking on air is definite maybe but nothing extreme.

I don't think I'll be too far off the mark with the component selection below but I could be wrong so I thought I'd check with you guys.

Sapphire ATI Radeon HD4870 1GB DDR5 DVI/HDTV Out PCI-E £215

Biostar TA790GX3-A2+, AMD 790GX, SAM2+, PCI-E 2.0 (x16), DDR2 1066/533/667, SATA II, SATA RAID, ATX £81.06

4GB (2x2GB) Corsair TwinX XMS2, DDR2 PC2-6400 (800), 240 Pins, Non-ECC Unbuffered, CAS 4-4-4-12, DHX £45.94

AMD Phenom™ X3 8750 Black Edition, Socket AM2+, 2.4GHz, 3.5MB Cache, Retail £96

Pioneer DVR-216DBK 20x DVD±R, 12x DVD±DL, DVD+RW x8/-RW x6, SATA, Black, OEM - NEW! £17

640 GB Western Digital WD6400AAKS Caviar Blue, SATA 300, 7200 rpm, 16MB Cache, 8.9 ms £55

seasonic/corsair/enermax PSU - min 500W and max 650W

Ive not had an AMD machine since pre core2 but that rig looks like it will be fine for his needs, should be good.

Personally I would say also get a CPU Cooler of some sort thats better than stock, esp if your OCing at all, not sure what to recommend for AMD, and I would always recommend Samsung DVD drives as theyre nice and quiet. Other wise looks good, good choice of GPU, HDD and PSU.

Hawker

My phenom 9950 Black Edition came with such a nice cooler (Didn't realise it came with one as they are usually just a chip) it was a shame not to use it. Not sure if the X3's are the same.

It might be worth waiting for phenom II dual cores for gaming or tiding himself over with a £45 X2 etc.. which will actually do a bang up job I'm sure so he might not feel the need to change straight away.

If you want to save a bit of money and still get a decent PSU the Enermax PRO82+ 525W would be good.