maybe a silly question

I have no idea, but what is an avg
dollar amount for flowers and photography

when i go looking - i do not know how much to say i need to spend.

it all depends on how much you're willing to spend. You shouldn't allow the vendors to make that decision for you, b/c then you're screwed. Give them a budget and let them show you what you can get for that amount. If you dont' like what you're getting keep on looking at diff. florists, or increase your budget.
Flowers,video and photo all depends on what you want and how much of it you want. It's hard to say the costs since it's a wide price range.

I am paying $800 for flowers. Not including centerpieces and I have 6 bridesmaids. But I think it totally depends on what kind of flowers you want. A good florist will work with you to fit into your budget.

I am paying $3000 for photos. I opted for only the digital pics and one coffee table album. I am going to make prints and parent albums myself. This was the one thing I think I splurged on I planned on spending a lot less but I like my photog's work.