A tactical problem

This is I think a 'reasonable' tactical problem in that it is probably good enough for a showing on the Sunday post of chessgames.com (or so I would like to delude myself into thinking). It was a 20/20 game at FICS and I was playing white as xombie. I would like the readers to pause and extract the mates (or heavy loss of material) out of this position. Just in case it helps, I took 15 min but got all the lines starting with my move. So, full points only if all the lines are seen!