I'm a complete newbie to home audio, I have a question.

I'm looking for a set of speakers I can wall mount, is it possible to wall mount bookshelf speakers, or do I need to get satellite speakers for that?

Also, are there general recommendations for the sub-400 dollar HTIB range, really preferrably sub-200? I'm considering the Onkyo 770's but they're really pushing my price limit, I'd really like to get closer to 200. Anyone have any advice?