I'm trying to change my look over the summer.... What things should I get before school starts?

Well I'm moving this summer and this last school year (freshman year) I was dissatisfied with the way I dressed. It didn't reflect who I am; I only wore jeans and sweatshirts (and the occasional Beatles tee shirt). So next year I thought that I would start completely over since I'm moving halfway across the country. The look I'm going for is a mixture of rocker/hippie/scene/goth/lady-gaga.... Ish. My favorite accessories are arm warmers (the thin kind), feather extensions (been wearing them since before they became popular), and hemp jewelry, so I definitely want to incorporate those into my wardrobe. So what type of clothes should I get (skinny jeans are out of the question... I honestly HATE them...)?