I know Deja Vu at Es Paridis sometimes have Drum & Bass DJ's playing (phantasy, SS) but they mostly play Old Skool Jungle.
There was a D&B night running at Inox last year but don't think it did too well (summink to do with the fact that it was on the same night as Helter Skelter!)
If you here of any D&B events in Ibiza, then please let me know as my Boyf who's coming with me lives & breathes the music.