I bought X10 and I can angrily say that it was a huge waste of ninety australian dollars. I have X9 and it's performance is questionable, but I got X10, and while it has ragdoll, DarkAI, bloom water and all that garbage, it's performance is disgusting, from what I've seen. To think that I've wasted ninety dollars, and if I hadn't I could be sitting on my ass playing The Lost and Damned for GTAIV instead of using this pitiful program just makes me want to retch.
Get X9 instead. You'll be thankful.
EDIT: And before you say 'Get a better computer', shut up, for I have what I could have called a monster of a machine earlier this year, and can run Crysis on Very High.
"You are not smart! You are very un-smart!"