Ah! Another happy iLiad user! I really enjoyed reading your original post!
If you haven't found any good books yet, head to
www.webscriptions.net - many books there are free to download.
I like reading my books with Times New Roman font, so I found out that keeping my books in Word or RTF format allows me to manupulate the fonts easily using styles and then export the result as PDF for easy reading. OpenOffice's "Export to PDF" works best.... And it runs on both Mac and PC.