Trail running shoes for serious overpronation

[MoshiMoshi]

I am looking for recommendations on trail running shoes for those with serious overpronation issues. I run in Asics Gel Kayanos and am after the comparable trail running equivalent I guess. I am actually going to use them primarily for playing hockey on astro turf as specific astro boots are pretty lacking in support and after trying two pairs which are nowhere near as supportive or comfortable as my Kayanos, I have decided that trail runners are what I should look into instead. Thanks for any recommendations!

[Merle]

Moshi no recommendations except to go to a good sports shoes shop and have them fitted. I live near to what is apparently 'the biggest sports shoes shop in the world' - not sure that this can be true but anyway they make you run over a thing which takes an image of your foot and then they recommend a shoe for your gait. They seem to know what they are talking about.

[shallishanti]

what would you expect to pay for fancy trainers?
I have over pronation and got orthotics made specially, I have to transfer them from one pair of shoes to another, and have been wondering how long they will last/what other options there are.
I just about managed to do 5k, but my knees are feeling the strain!