Business directory yellow pages 2.0 style with google maps

I need a business directory site for SUMMER CAMPS... but really the category doesn't matter... basically i need a 'web 2.0' yellow pages.. all the existing scripts look old-school... i want big css3 font styles, big type, good look so my directories look better than the others.

Google maps, links to external sites... big header photo on each business page so it looks like they are buying more real estate than just a small photo next to the listing.

Show me a business directory I like and we can change it around as I need it and you get the job.

I need of course php... i would prefer it in yii, cake, or zend...... but not necessary if your script is nice :)