Junethesis,
Honestly your going to have a hard time making any money with that few of impressions.
Here the basic of banner advertising, there are 3 differnet ways advertising companies pay, and each company is different.
1. (CPM) Pay per impression, each IP is only count once in a 24 hour period, so if you visit your board 20 times a day, you will only get credit for 1 impression. You have to have alot of traffic for these banners to make anything, most of the going rates are around .20 per 1000 unique impressions.
2). (CPC) pay per click, they will send you a bunch of credit card banner and click here you might win a prize, most of the going rates are around .05 - .07 per click.
3). Affliate program, here you can choose the banners you want to display most of the time, but you only make money if someone click on the banner and buys something from the website within 30 days.
For CPC and CPM most of the advertiser don't like message board based websites, and will not look at your application unless you have over 25,000 -100,000 impressions per month. One of the better companies that have a low minimun of 3000 unique impression per month is
www.fastclick.com they are also one of the better advertiser.
Your best bet might be number 3, for that I would goto
www.cj.com they have thousands of programs and probally have several fishing supply companies.
Hope that helps