[peanut]

I have a very wet area at the bottom of the garden (made worse by this winter's rains).  I have used an aerator at about 12" spacing and have a Pear tree and a bamboo established.

Are there any other useful 'thirsty plants' I could try to drink up some of that moisture?

[Trillium]

Ligularias, both the yellow rocket and Britt-Marie Crawford variety are real slurpers, as are as are a few grasses like carex. Hollies and dogwood love wet feet, so does Joe Pye Weed (eupatorium).

[sunshineband]

Gunnera would be good if you have masses of space 

[Rangerkris]

I could send you some twisted willow cutting's, i really must take the top out of the one in the front garden and this would make me do it hahahahha