I'm using Klipsch RF-82 towers and I love them. To get great bookshelves you would need a larger bookshelf and I high quality one such as Focal 1008be etc. Quality is best but it comes at a price. Still I would want to be able to set my mains/sub crossover at 60hz and that would be a tough job with bookshelves.
_________________________
"There is one who comes after me who's sandals I am unworthy to unloose." John the Baptist