I do use Nebula aswell(allthough Nebula040404 doesn' support SAIx2?) and I use Winkawaks. I prefer winkawaks for the newer roms. I like its SAIx2 blitter. Truthfully i even prefer Mame32 over Nebula. dude... the blitter named ElSemi's INterpolation "plus" or full interpolation.. owns 2xsai.. 2xsai is so gay i hate it