Everyone seems to be recommending Duncan Stone. I remember two years ago when we looked into the process, ARS Granite of Fruitland Park had several great reviews, use the search feature at the top of the page.
We visited ARS along with a couple of others. If I remember correctly, they were charging installed price of $42, $52 and $62 a sq ft for the three different levels of granite. That was cheaper than the others that were asking $45, $55 and $65 a sq ft. They also had a nice single basin stainless steel sink for $300, that we liked. They are close by, they have some granite slabs on site, or you can go to the Universal Granite yard on Rolling Acres Rd. Here's their website.
ARS Granite and Marble
We haven't installed the granite yet, because we first wanted white cabinets. Our kitchen is small, only 10' X 10' in a courtyard villa and was almost new. We required 68 sq ft and with a sink and faucet we were looking at about $3500 to $4500 depending on the level of granite. So we first had Remington Kitchens of Leesburg reface our cabinets. After that was completed, our formica counters looked much nicer. So instead of spending $3500 on granite countertops, we spent about $4500 on plantation shutters on four windows, a backsplash in the kitchen, hand pulls on the cabinets and wood floors in the kitchen, foyer and dining room.
Our kitchen before:
Our kitchen after refacing, backsplash, hand pulls, plantation shutters, wood floors: