Wireless Speakers?

I'm thinking about getting my husband some wireless speakers for our home theater system for Valentine's Day. I guess that's technically an 'us' present, but I know he's really been wanting some. Does anybody have any recommendations for a good something to start with? It won't be the entire system right away - maybe a sound bar or a couple front speakers? (We currently have a ~5-year-old wired 5.1 system.) Any help would be much appreciated!