Book Theme: 2 columns with sidebar on left.
Magazine Theme: 3 columns with sidebars on right.
Both: First line indent for paragraphs with the exception of the initial paragraph in a section, sub-section, or sub-sub-section. Serif font for body/content/post text. Book/magazine layout for posts.
In short, I'd like a book/magazine look; single spacing between paragraphs, wider spacing between sections, sub-sections, and sub-sub-sections. No indent for first paragraph, first line indent for subsequent. I have in mind a different graphical look for the book blog, so a 2/3 column theme wouldn't work. Do you know of any candidates?