All you need to know is here at this excellent home tourney site
As a guide to get started though:-
your chip denominations should be about 4 or 5 times the value of the previous one e.g. 5 - 25 - 100 or 20/25 - 100 - 500
your chip denominations will obviously have to accommodate your blind levels or vice-versa
e.g. If your blinds are 15, you will need 5 value chips or with 20,40, 60, blinds you will need 20 value chips, but with 25,50,75 blinds you will want 25 value chips.
Aiming for 1hr games is quite ambitious IMO, the blinds will have to increase VERY quickly and this format will favour luck more than a slower structure which will allow for more skilful play.
I would think aiming for 2 or maybe 3 games in an evening would be better.