And just to state the obvious, Final Writer (or at least FW97) has similar print options to Wordworth.
I use it often to print large double sided documents in my postscript laser printer.
To avoid too much paper shuffling, you can also print the first (odd) sides in reverse order, put the whole lot in the manual feed tray, then print the even sides in normal order.
That's for us poor people who can't afford a real duplex printer :-)
