Or maybe you could accept the fact that he lets you live with him, and he's supporting you, and taking care of you, so you should be grateful for that. Sure, what your uncle did was inappropriate. If I were him, maybe I would have also thrown your stuff in a corner, but I would have made sure whatever I was putting in the corner would not be damaged, and would not be something expensive like a DS. But bad things happen, and maybe he was so upset that he didn't think straight at the time.
In any case, I would say that you forgive your uncle, since that is the most noble thing to do. It's very difficult to fogive a person who has wronged you, especially when they damage your possessions in the process.