I haven't actually heard either of those, but I think they will be about as good as can be expected from small satellites in that price range. They should both exceed an HtiB in quality, particularly the Energy system, according to what I've read.

If you're not dead set on satellites, though, I'd recommend another option, which will be superior in sound quality to either, and not too much more expensive: get two pairs of Polk Audio M10 bookshelf speakers, and a CS1 center channel. Then add an Hsu Research STF-1 subwoofer, and you will have a real 5.1 setup. With the holiday discounts they've got going at the moment, this whole system will only set you back a total of $486, and it will deliver greater results than anything that will come bundled together in one package. The Hsu subwoofer in particular is a high fidelity component, offering superb sound quality that makes it a great choice for listening to music, in addition to movie bass.

Polk M10: http://www.newegg.com/Product/Product.aspx?Item=N82E16882290224

Polk CS1: http://www.newegg.com/Product/Product.aspx?Item=N82E16882290211

Hsu STF-1: http://www.hsuresearch.com/products/stf-1.html

Even without being on sale, these would be great choices. Of course, you will need a separate 5.1 receiver to power any of these systems.