Colonial Granite on Henderson Rd in King of Prussia has a huge selection. Lots to look at there, but I know several people who have not been happy with the installation.

I love Gravena Tile on Umbria St in the Roxborough section of Philadelphia, just off the Schuylkill Expressway. Other good places are Santoro Tile on Main St in Norristown and Akropolis on Bethlehem Pike in Hatfield.

I got my granite counters from Akropolis and they did a nice job. I'm sure there are no shortage of places to look in the area you mention!

If you google 'granite Essington PA', you 'll come up with a bunch of places. That's the area around the Phila. airport. Click on the map and you'll see even more in the Phila. area. I bought my kitchen granite down there over 10 years ago. I think it was from Imperial Granite. The place was huge. I remember they were busy on the weekend, so you might want to call and see if you need an appointment so you're not waiting around for help. I bought a smaller slab of marble for a vanity at Suburban Marble and Granite in Warminster, Pa.

I just used Michael Addesso Tile and Granite World in Norristown, PA, to install marble in a bathroom. I have never been so pleased with stone installation before, and wish I knew of them when I had granite put in my kitchen. Their customer service was great, too.

We got most of our granite/marble at IMG Stone- a fantastic selection and the prettiest marble I've ever seen. (outside Philly)

Our island slab came from European Marble and Granite Group. They also had a great selection. (New Jersey)