That's so cool... I remember the first time I put the gear on. It really is exciting. A few more weeks and you'll be ready for your open water dives.
I'm sure your instructor has something lined up, but keep in mind that you can usually do your open water dives with a different instructor. What I'm getting at is that if you finish your certification in Flagstaff then you will probably do your open water dives in a cold, murkey, dirty lake or resivoir. You probably have the option to delay your open water dives and take a weekend trip to San Diego or Mexico... Do you have any plans for your open water dives?
-Scott