$260 sounds about right for a dock-to-dock (terminal-to-terminal) move. Florida is considered a heavy inbound lane (a lot of freight goes there but not a lot of freight coming out).
If you're using a traditional LTL trucker instead of a moving company, please also keep in mind that we are still in the midst of the holiday shipping season. Cargo will be crammed in there as much as possible. This is the time of the year when we file the most damage claims for our clients. If you can wait, I would suggest shipping it after Thanksgiving.