Well, I too like the Idea of "realistic deities"
When I am not running an epic level campaine, I tend to run a low-magic campaine setting I have been working on for about a year now, and one of the things that I like about it is that I try to keep things in line compared to the average human. 2-4 Hp, 10 AC, etc. Something of 11th level would have almost 100 hp, and ac around 20-25 easy. Such a being would be a "god" compared to the human commoner, requireing an army or a crafty mage or a couple of heros to take down. My power scaling isn't too much different than U_K's in most cases, it just has the possibility of deities on the lower end of the spectrum. I think I had power scaling as follows:
Levels
1-5 - Human norms of skill. 1 being basic, 5 elite.
6-10 - Legendary skill. Few would possess such power.
11-20 - "Godlike" If such beings wern't already gods, they may as well be compared to everything else.
Granded these weren't hard and fast rules, they simply show a range of comparison, so the PCs know exactly how powerful they are, even when they get their butt kicked by the Queen's royal guard.

U_K's stuff I think will help with Ideas for my low-magic campaine, but I do think it is mainly intended for High-level play.
EDIT: Nyeshet! Though pointless to point out since its only 12 hours away, but your ENworld forum profile says you live on the East Coast. U_K does not

He lives 5 timezones away, so anytime he lists, subtrack 5 hours for his timezone discrepency. So 1:00...