I spent $8 on some PSP screen protectors. After measuring it turns out that the height of the protector is correct it is just length that must be shortened. Anyhow, I've been using the same protector since February and it has only gotten a couple of noticeable scratches on it. Just be warned it is incredibly annoying to put on (it is the slightly adhesive type).

http://www.walmart.com/catalog/produ...uct_id=3657052