No problem. Good luck getting it all together. I'm Surprised to hear you are using the stock heatsink, but then again they still OC well with the retail cooling. Every S939 I have bought has been a retail box.
And about recommending the X800GTO, I am cheap and most of the time I've been recommending it, it's been $30-50 cheaper than any 6800GS. I can understand your point on the unlocking and overclocking, and if the current GTO's are worse OC'ers now then the 6800GS would have more to give. But I still look at cost and stock perfomance and the X800GTO wins both. I just can't see spending over $200 on a higher clocked 6800GS and the reference AGP's clocked 350/1000 were pathetic in Digit-lifes AGP charts.
I guess my problem or reasoning is that most of the systems I build for others I don't consider OC potential at all. Most people who would OC would be building it themselves. Unless they express interest in OC, I just try to buy the best stock bang for the buck.
Right now I'm bummed I missed that $145 Abit X800 256MB at Newegg. Only reason I didn't order it is I feared it had 700MHz mem and not 980MHz. Otherwise X800GTO for $170 now is not what I call a good deal, rather grab the $180 X800XL. But 6800GS AGP's are getting rare. newegg has two both out of stock, and I don't see even a single one on pricewatch. The two at Newegg cost $200 and $220 if they do come back in stock. Too high IMO.