I was gonna suggest those Daytons but you beat me to it.
I got those Daytons when they were the bargai of the day. They are actually pretty good for the price and for mainly dialog, I think they would do quite well.
Actually, five of them and a small sub would be a good to great starter HT system. If pure music were your goal though, I'd say look elsewhere.
I got to play with those Pioneer speakers at Best buy and while they are great, and visually stunning, they do require quite a bit of power to get the most out of them. That's the price for getting any bass out of a 4" speaker.