At 02:36 AM 6/15/2008, Andrew Grebneff wrote...
>Yeah, well, I said "important letters etc".

Incorrect. "The abbreviation [etc.], even if only a single term comes
before it, is always preceded by a comma." - Rules of Usage. Strunk,
William, Jr. 1918. Elements of Style, cited at
http://www.bartleby.com/141/strunk.html

If you really want to be picky, some style guides require such terms to
be spelled ("et cetera") when outside of parenthesis, but that
contradicts widely accepted current usage.

This is a US based list, and I'll allow that NZ style may be different.

>.. someone else for that task (e-mail, written, sumitted).

Incorrect. (Parenthesis do not have to appear inside other sentences.)