I use a filter to set up emails from certain individuals as level 1 messages. The problem I was having was distinguishing between and trying to remember which of the various tones I used were for level 1, normal messages, SMS.....
There is a solution for that on the 7100......
What I ended up doing was going to
http://www.adamdaley.com/wap/voice.htm from my BB and downloading voice ringtones, using the old standby AOL "You've got mail" for SMS messages, a George Carlin "You've got a letter in your mailbox" for level 1 msgs, and "You have an incoming transmission" for all other messages. No trouble anymore distinguishiung between the types of messages that have been delivered.