Check out these two trailers, they're both awesome! I haven't seen either of the films but I've got NIGHTMARE on Code Red's DVD, and I'll certainly check if CANNIBAL GIRLS is out on a proper (or even not so proper) DVD.
EDIT: CANNIBAL GIRLS is out on DVD from both Shout! Factory in the US and Nucleus Films in the UK. They both seem to carry the same extras except the UK disc has additional subtitles.