redirect errors to log file

I am working on a generic script that will run a shell script with the arguments passed and redirect errors to one file, and all other output to another file. Then if there is anything in the error file it emails the error to me, otherwise it exits.

The advantage for this approach is that I won't need to worry about doing error handling in each shell script. I will just know that any errors encountered will get sent to me.

How can I set up the redirect to send only errors to the error log and everything else to the log?

${CMDNAME} ${ARGLIST} 1>${LOGFILE} 2>${ERROR_FILE}

Thanks.