Yes, you have the psycho factor with Artest, but with Peja you have the disappearing factor. The Kings have most likely seen as much as they're going to get from #16. How good is he for you if he can't do it when it matters most? It's nice when he's the deadly shooting Peja in the regular season, but it sucks when he becomes an average player in the playoffs,especially in the 4th quarter.
Plus, Artest's attitude may be alittle better at least for this season considering he just missed 3/4 of a season and the playoffs.
I'd be willing to take a gamble with Artest. This team sorely lacks a lock down defender ever since Christie left. I think Artest is a better defender now than DC was in his prime, he's more of an offensive threat, and he's still pretty young.