I don't know what your budget is, but I'd take a look at phprunner. Costs 99$, but you get a 21-day trial to try it out first, fully functional. I used it make a sheet music arhive, and I'm still using that archive. Only downside is that it has a "To remove this, buy a license" thing.
Not wysiwyg, but very easy to use and very advanced! I probably did what would have taken me 10 days to do manually in one afternoon.
http://www.xlinesoft.com/phprunner/download.htm
Edit: Sorry, thought it was 99$, seems it's 199$. New version (3.0) har better UI, and template editor. Still not full wysiwyg, but even better than the one I tried. I'll try 3.0 now!
Paal