hey christian,
just wondering... did you take it somewhere and get it looked at, or are you just rollin' on the tip i gave you about the control arms? i mean, when that same thing happened to me, it bent the crap out of the lower control arm of the side that hit the curb, the other side was unharmed. so you probably only need one. but then again, i'm no expert by anymeans. so you might want to jack it up and have a look see before you go spending money on it.
-jeff