Just got back from a long weekend in Crown Fort.
Taxi prices have gone up, as you'd expect with the fuel prices but i met 2 cabbies who were happy to give me their number and even wake them up in the middle of the night to give us a lift back from sunny beach at 4am!
One - Ivan, has a normal 4 seater and charges just 20lev at any time of night - number is 08 99705980
The other has a 6 seater and charges 30lev (although only til 1am) - number is 08 88739 985
As usual the bus conductors seem to make up the prices as they go along but if theres a group of you, its worth taking one of these cabs.