What are the odds of a FG/FF coalition taking place after the election?

Both party leaders are constantly ruling out the option of going into coalition and I hear doing so would be disastrous for Fianna Fail in the long run, in the same way the Lib Dems in the UK got hammered for going into coalition with the Tories.

On the other hand, last I heard the bookie odds of a FG/FF coalition were slashed.