I wouldn't drive to fill express either just to rent tanks... unlessDebbyDiver:I would not drive that far to rent tanks, you could just rent them at the boat. If you beach dive, there are dive shops pretty close to all the beaches. FE has a great rep, but I've never been there because I just wouldn't drive that far for air (I don't do mixed gas).
1) you really want steel tanks (100's, 119's, 120's etc...)
2) you really want nitrox
Otherwise... all boats have tanks. Usually AL 80's (for rent) and Nitrox sometimes.