right online record stores... the best are juno, boomkat and blackmarket
tunes you need is tougher cause tunes arent that easy to get a hold of so i would advise getting anything by any of this lot to get you going- skream, boxcutter, vex'd, mark one, d1, ntype, search and destroy, dj distance, loefah, toasty boy, digital mystikz, scuba, slaughter mob, plastic man, moving ninja, dj pinch, elemental and you'll be off to a good start it will help you get a feel for what kinda things tou like.
label wise (not a comprehensive list by any means just a rough guide to get you started) look for hotflush, tempa, destructive, ital, boka, tectonic, soul ja, storm mind, DMZ, skull disco. Rephlex and planet mu both release grime/dubstep/breakstep things too
juno give you lists when you add to your cart of other things that people have bought so you can find other things there, download some mixes with track listings from this forum so you know what you like and check threads to see what tunes people are feeling.
good hunting!
