Photography Site

I would like to use Wordpress for a photography site, but there are some features that I can't seem to find.

I would like to be able to search EXIF data that I tag my photos with. I shoot sporting events (specifically dirt track racing) and need to be able to tag photos by car #, class, driver name, etc.

I purchased a product called Photostore. It has the features I need, but the interface is clunky and I'd like to be able to do more with the site, like have a subscription service for video and photo download.

Should I just use Photostore for the pictures, put Photostore in it's own directory or subdomain, and build Wordpress around it?

Would MarketPress be able to handle what I'm looking for?

I would love to get some feedback on this project, it's been languishing this year, and I'd like to kick off 2012 with a new site in time for my first tradeshow in the middle of February.