Welcome to the board!

Where are you coming from? What kind of boat do you have?
Tampa is a great place to live, work and boat. I'm sure you'll enjoy it.
There are an endless number of places to go boating, tie-up, grab lunch and a drink on the water and islands to hang out on.
The OPBA(Offshore Power Boat Association of Florida)
http://www.opbafl.org/ is a great local club. They do many events throughout the year.
As far as cell phone companies, Verizon and Cingular get the best coverage locally in my opinion, though opinions will differ. If you want broadband, I'd go with Roadrunner from Advance/Newhouse, formerly known as Time Warner.
Any other specifics? I live in St, Pete right across the bay!