Stay far far away from that dance techno crap they play in gay clubs and the "boomski-boomski" clubs with chicks singing. That will definately drive you away from the genre. Also, don't get into the really intense crap right off the bat. You probably won't appreciate it at first. There's too much stuff to list, but here's a start:
For downbeat:
DJ Wally - off of "The Stoned Ranger Rides Again" esp. "Outta My Head" (it's hard to find but a great track)
Electronic:
Aphex Twin - "The Richard D. James Album" Especially "4" and "Fingerbib" (this album got most of my friends hooked on tech)
Caustic Window (AKA Richard D. James) - esp. R2D2
Jungle:
DJ Soulslinger - his ambient stuff is a little boring, but his hardstep crap is great
Kenny Ken - again, try to find "Kenny Ken w/ Stevie Hyper D live at Mach 1"
Trance:
Paul Van Dyk - BT Flaming June off of "Perspectives" is amazing
Turntablism (scratching):
Qbert - stay away from his studio releases (they're crap) but his sets are good)
If you're in the Buffalo area, check out Sampson at club 658
