After some small delays, my MacBook Pro arrived this afternoon. in spite of my best manifestation powers, I was unable to summon it any sooner.
So, here I sit, one sleek laptop richer (in the dark with an illuminated keyboard, I might add), and $1500 poorer. As I have sat and fiddled with the machine most of the evening, I know that I am quite content with the purchase.
The learning curve is steep, but not unbearably so. It is, like anything else, a matter of practice, patience, and time. Already, by consulting the apple website I have found a number of inordinately helpful pages (keyboard shortcuts, how to use Spaces in Lion).
If anybody has suggestions for this convert, I am rapt with attention.