Thanks for the advice.
The bookshelves I'm looking at hold their own in the mid-bass and bass regions. The Studio 20's go down to 54 hz, and the Monitor Audios go down to 42hz. (the LSi9's I'm currently running go down to 39 hz).
My gut was telling my to go with bookshelves. Thanks for the feedback!
PS: Are there any other brands anyone would recommend for a home theater oriented set-up? I like the LSi's a lot for music, but they're a more laid-back, involved listening type of speaker. For my dedicated home theater, I want something with more energy, sparkle....more of a 3 dimensional, wider, sound-stage.
I've been auditioning speakers lately, and am open to suggestions.