I'd have to agree with Bob, doesn't look all that bad. You notice anything knocked out of form, like the door or windows that don't close nicely? If not, I'd be inclinde to try a good wrench or some sort and see if I could put a good deal of weight on it to bend it back, or leave it be since you might just make it worse?!
Computers manufactured by companies such as IBM, Compaq and millions of others are by far the most popular with about 70 million machines in use worldwide. Macintosh fans note that cockroaches are far more numerous than humans and that numbers alone do not denote a higher life form. -NY Times 11/91