DavidAndrewWay, I'm having trouble making sense of your responses:
You dismiss the Omnisat because you'd have to mail order it, yet you're drawn to the AV123 X-Omni which is only available by mail order. The OS3 Sat is available from Crutchfield with free shipping and a 30-day money-back guarantee. All you risk is return shipping on some very small, light speakers.
You aren't comfortable with the OS3 because there are "no reviews" on it, when it's in its 3rd generation and is one of the most reviewed speakers in the past 8 years. Try
http://www.miragespeakers.com/media/news/reviews-press-pdfs/os3-playback.pdf from Playback online magazine, a publication of The Absolute Sound. Google for "Mirage Omnisat review" and you'll get pages of reviews of the original and v2 by every AV magazine imaginable from around the world. You can also find dozens of user reviews from Crutchfield, Amazon, and audioreview. Meanwhile, the X-Omni is so new that all its specs are "Coming soon!" and there are no reviews in sight.
You assume the X-Omni will have all the dimensionality claimed on the website, while the loudspeaker has but a single front-firing tweeter, the part that handles the shortest--and therefore the most directional--soundwaves, while the OS3 has a waveguide that disperses frequences uniformly based on about 10 years of R&D into speaker/room interactions and ear-brain psychoacoustics.
You presuppose the OS3 will have weak, thin bass, yet you wanted a small shelf or stand-mounted speaker, which is usually augmented with a sub. The Mirages have the advantage of a new, patented elliptical rib technology that extracts deeper, more articulate bass from a given driver and cabinet size.
You consider Best Buy the kiss of death. BB is the one survivor of the big box audio stores. Klipsch now owns and distributes Mirage, which places certain models on the BB website. That doesn't mean it's crap; it means that production is ramped up and they're readily available. BB is also partnered with Magnolia AV, which carries Denon, Marantz, McIntosh, Primare, Martin-Logan, Vienna, Sonus Faber, Definitive Technologies, REL, etc. They aren't crap.