I am driving to Miami this weekend and will spend most of next week there.  I just found out that TX and FL have a CHL reciprocity agreement.  I will have my CCW in the car, hotel, and possibly restaurants.  
Is there any quirky laws dealing with CCWs in restaraunts?  

In Texas any business wanting to ban CCW from being carried have to post a specifically worded sign at the main entrance. Is this the same for Florida businesses?

Does Miami have city based restrictions on Conceal Carry?

Suggest starting with [url]packing.org[/url]

It looks pretty strightforward with minimum BS.  State overrides local laws so no bizzare local crap to deal with.

No guns in bars, sports arenas, police stations & courthouses. Signs must be posted to prohibit CCW, but you won't find any. No need to notify police if you get pulled over. Here's the official wesite [url]http://licgweb.doacs.state.fl.us/weapons/index.html [/url]

If you are saying that businesses can put up signs to restrict CCW, you are incorrect.  In Florida, "no guns" signs have no legal weight except that if the business somehow finds out you're carrying (they shouldn't if it's concealed) they can ask you to leave and if you won't, they can have you trespassed off the property.  If you are carrying in a business with a "no guns" sign, you are not breaking any law and would not be cited if you had to use your gun in legal self defense in such a business.

No local laws to worry about. State law is the King.
The quirky one to be careful of is in restaurants. You can carry inside if they serve alcohol only if you sit in the restaurant part, not at the bar.
Say you go to the Outback and you have to wait for a table. You cant wait at the bar or take one of the tables around the bar. Its a class ll misdemeanor. You can only sit in the restaurant part. You cant carry in a stand alone bar.
The only place I have ever seen a No Guns sign is at a pawnshop.
[url]http://licgweb.doacs.state.fl.us/weapons/possession.html[/url]

I've seen the signs at pawn shops and gun shops, and Blockbuster Video used to display them (but don't anymore around here at least).  I always ignore them as they hold no legal weight.