Hi Steve,
as the above post say, I think too that 30 % of fat intake is quite okay.
I am studying "Oecotrophologie" in Germany and my opinion is based on the Standards of the "DGE" (let's say "German Associatioin of Nutrition"). I second that the composition of the fat is important.
I wrote a few articles about sport and nutrition on my blog, you can see that sportsmen who should go for a maximum of carbs, still should eat 20% fat:
Ernährung bei Kraft- und Ausdauersportarten | fitfuttern
There are some numbers in it, based on a german science book (Citation is in it.
I just want to point out, that there are other organisations which are claiming the 30% and have nothing to do with US-Business.
Moreover I think that the DGE is not biased recommending businessfriendly standards. In Germany nutrition-related diseases are costing so much money that it is a burden for the whole health-system.