Forgive my ignorance, but what are "full range standers or book shelf speakers?"
Also, does anyone know how the Altec Lansing FX6021 2.1 Speaker System compares with the H-K Soundsticks II?
Full-range speakers are speakers designed to handle most, in some cases all, of the frequency response range. One that handles the highs, mid-range, and the deep bass hertz <--(what you measure frequency response in).
Book-shelf speakers are speakers that, basically, fit on a bookshelf. They usually can't handle bass below 50-60Hz, so you will generally want to add a subwoofer for the sub-bass frequencies.
The FX6021 beats the HK STII's hands down. The Altec's are known to compete with entry level studio monitors, which is very impressive for the price you pay for the Altec's. The Altec's have a digit signal processing chip that essentially divides the mid-range and treble (the "highs") and sends the frequencies - systematically, in pairs - to the different drivers (the actual moving components of a speaker, that moves air to create the sound) which is very efficient, and creates for excellent audio handling.
Give the Bose Companion series a look, as well. Bose's home theater systems are a bit lacking in my opinion, they're Companion series is excellent. I used to own the Companion 3 series I, and it was an awesome system - and still is. I'm selling it to my friend, who uses it to produce beats, crank his music library, and watch movies, and it excels. Owned it for two years - never had a problem.
I currently own studio monitor speakers - which are some of the best for near-field listening.
Peace