Stephen Frizza processes Kodachrome...!? That's interesting. Very interesting.
Ask before photographing Monks or the sacred places; in many places some sort of payment is expected (very tourist-savvy!). Dress should be neat casual and nothing speaking "money" should be overtly visible. Keep cameras etc out of sight until you actually use them. The Lonely Planet Guide Nepal is a must-read and will give you the fine print on local laws, customs and festivals.