Tom got me working on a conversion for Stars Without Number to STar Frotntiers. Its a retro clone of the old B/X D&D rules crafted for a science fiction setting. Rather elegant set of rules I must say. That's a strong compliment becuase I've been extremely frustrated with D20 systems since returning to D&D 5 years ago.
At anyrate I was totally over thinking the conversion and mucking it up and making it less elegant. Time to step back, breathe deep and chop my work down to size.
I strongly recommend Stars Without Number for role players who are wedded to the D20 system and mechanic but would like to play in a sci fi setting for a change. Hopefully there will be a conversion guide coming out for its use in the Star Frontiers setting soon too.