Sorry for the two question post....
I’m just digging into creating a theme for Magento and found this post:
That’s going to help a TON.
Second, I guess this is related. Just how scalable is Magento? It seems there is A LOT of work being done for every single page view. The HUGE main.xml file is read every time, along with dozens of other files. Now, I haven’t gotten into the caching feature so I don’t know how much that’s going to come into play.