Sub £35 size 10ish for a fad dabble at trail running, whats ok?
Adidas Kanadias TR5
Ok £38
Go on MandM Direct, they do NewBalance and other makes relatively cheap. Quick delivery too.
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I just bought some Adidas Duramo as above, in Red & Black, for £32 from Sports Direct. Nice fit and good, grippy sole. I like them so far but haven't worn them out of the house yet.
More Mile Cheviots are supposed to be pretty good.
http://www.startfitness.co.uk/product.asp?P_ID=47910
If you go for Kanadia's get at least a size bigger. They're tiny. Great shoe though. Been running in a pair over winter but have just gone onto some Asics Fuji Attack for the summer.
Sports direct and try loads of cheap shoes on.
Over budget but these are great trail shoes, http://www.sportsshoes.com/product/INO40/inov8-roclite-285-trail-running-shoes/
Quechua (decathlon) Arp 50
£12
light, grippy, fit my wide feet, indestructable, comfy.
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+1for kanadia 5 brilliant shoe