Altering website for Advertising

Looking to alter an existing webiste [login to view URL] to facilitate room for advertising. Looking at changing the page buttons (A better way to have users navigate the site). Advertising to be only on events and resources page. need to know what type of advertising is possible (flash, banner, video) and if any changes are needed to maximize space. Need to have an idea of the # of advertising I can fit on this part of the site. Need a visual provided of the advertising layout but no actual changes to these two pages.