All, ++Good! You've all given me enough ideas about this to look forward to an evening of my players trying to melt stuff in the cargo hold, draw off impurities and try not to get the ship clogged on mud; hmm - if any of the impurities are (e.g. methane?) flammable that'll make it even more entertaining... ;-) Thanks! <SNIP> Bill Rutherford worj@comcast.net