just went thru this entire ordeal myself...
Cheapest place I could find tickets is the Publix nearest Busch Gardens.... $65 an adult// no additional discount for kids though
If you want to combo it with any of the parks in Orlando, ticketmomma.com but they have to be picked up in orlando. We did 14 day seaworld and busch gardens, can go to busch gardens as many times as you would like in 14 days... it took us 2 full days to do everything....
seaworld was eh, but the manta coaster was the best out of all of them and thats at seaworld