Needing a New Blackberry Cover!

I need a new cover for my BlackBerry! The old one simply fell off. Right - in - my - hand! I have to have a cover because I'm not easy on phones. It needs the protection. So what should I get? I've been looking at tons of blackberry covers.  I've decided that I want something purple and with some bling! I have it narrowed down to three now I have to make a choice. Decisions, Decisions...