Best ferts! what to use?

Hi everyone,
i live in the uk, does anyone know any good sites that sell decent ferts for our sort of growing.
anyone have any opinions on the best ones to use? for both growth and flowering?

also i have heard that root stimulators (Mycorise-type biological amendments) have a good effect on size of yeild. can you get fertilizer that has this in it?

cheers!
Dan

dan im uk too look on ebay, try atami range mine love it atami bloom stimulator

cheers mate, will check it out