I'm in the same boat - personally I remember in middle school having to learn how to write a proper business-related letter (in English class, where we were expected to know proper sentence structure); but I think nowadays for some reason it's fallen to the wayside.
The point I always drive home is emphasizing the professional touch, not the personal touch. For some reason I see resumes with pictures, emoticons(?!), clipart, thinking they're putting a personal touch that will make them stand out; these are the same ones that write the address on the envelope with sloppy, illegible handwriting or misspelled names of managers.
I'd love to see a clean, concise resume with an intelligible cover letter. I want to read their information thinking they could handle a job with maturity, not that they're a homeboy that's fun at parties.