http://www.techno-dnb.com/forum/viewforum.php?f=7
check my mix and the allied mix in particular for a pretty broad representation of what's going.
for schranzey techno dnb check out cooh and some proket tunes and older Dying Punks (raiden & dean rodell) stuff. there's a ton of lesser known producers doing really hard stuff but i wouldnt really know what to recommend.
oh yeah be sure to check out Yabol as well, he's got some really interresting tunes out.