Why don't you try a pair of "full" rangers and add a sub for LFE?? I own a pair of Performa F206's and have them in a 2.1 set-up I use for movies and music in my living room. Nice WAF and it sounds really good and keeps the LFE out of them. I would try something similar with what you have first. Nothing beats a well dialed in surround system for movies.
Rob
Rob