February is not prime tarpon time in Florida,,, personally I would save a tarpon trip for mid April to mid July if I wanted to target tarpon in Florida.
The gulfstream runs quite close to the South Florida coast and winter is the prime season for Atlantic Sailfish all along the south Florida coast to the Florida Keys. You should be able to find a charter in the Fort Lauderdale / Miami area if that interests you.
If fly-fishing and actually catching fish at the same time (lots of fish) appeal to you, check out Capt. Scott Hamilton
http://www.flyfishingextremes.com/ in the North Palm Beach / Jupiter area north of Fort Lauderdale. I have fished with Capt Scott several times and have caught black fin tunas, albacore, dolphin(dorado), jacks and a host of other species till my arms ached and my knuckles bled.