PhotoShelter published a free report from a 2009 survey of 550 photo buyers. The results are interesting. Over 90% of buyers surveyed hated flash-based introductions on websites. Click the link below to read a summary of the survey. They provide a place where you can enter your e-mail address and PhotoShelter will e-mail a free 22-page PDF with all of the results. I know I'm going to be redesigning my website based on this information.

http://pa.photoshelter.com/mkt/photo-buyer-survey-2009