An interesting article appeard in Car and Driver in May of 2004, written by Larry Webster. While the article focuses mainly on GM V-8 pushrod engines, it sheds alot of light on why a pushrod engine is better than the HF OHC engines. I am not a fan of the new more complex HF engines, but I do admit that if you want the additional tech to brag about, then the associated costs should be expected in the price tag.
Also, if memory serves me, isn't the Malibu SS getting the 3.9 HF V-6?
Here is a link to the article.
The pushrod engine finally gets its due.
By Larry Webster
May 2004
http://www.caranddriver.com/article....&page_number=1