Go for a trip to London...
Get the tube to Kentish town...
turn left out of the tube station and walk down, past a set of traffic lights and just before a railway bridge you'll find trackheads/ access all areas on the other side of the road (Right hand side as you walk toward london)
go in there and ask the guys behind the counter to give you a selection of techno.. tell them you're not sure what you're into, and you want to check some stuff out and find out what you like.. they're quite friendly and won't mind this request... buy the stuff you like... that's the best stuff, the stuff YOU like....