http://www.solihullflydressers.co.uk/
These guys have some waters, not sure what they are tho as its a long time since I looked into it.
I lived in Kenilworth for 20 years and Finham brook and a few others have some brown trout in them....I only live down the road so if you fancy giving a few a whirl then would join you. I also know someone who gives me access to the Avon north of leamington, not sure if there are trout in there but I intend to have a look this season.
Be interested to learn your findings whatever happens.