For those finding SBH to be a bit bland, I definitely recommend the various supplements. Song of Deeds and Glory is a very nicely constructed campaign system, and Song of Gold and Darkness is nice for those wanting an old fashioned dungeon crawl. Song of Arthur and Merlin is another supplement that really expands the scope a bit.
Equally important however, are good scenarios. A document available here:
http://hour11gaming.blogspot.com/p/song-of-blades-heroes-stuff.htmlcontains every warhammer skirmish and mordhiem scenario converted to SBH. It was pure gold for our campaign, and for pick-up games, it gives you 80 scenarios for games that aren't simple kill-em-all.