California's title 24 gives the maximum lighting you are allowed in certain areas. Bump it up a bit from that and it should be nice. Most people consider title 24 too dark.

Look at the tables on pages 108-109 (Manuals pages not the pages reported by acrobat): http://www.energy.ca.gov/title24/2005standards/2004-11-04_400-03-001-F.PDF


[This message has been edited by dmattox (edited 06-05-2005).]