MN-720 system tray icon - signal strength?

I just installed an MN-720 network card on my Thinkpad - works great
and installation was very smooth. This card is a great value.

I upgraded from an SMC 802.11b card, but there is one nice feature
that I can't track down with this card...

Is there a way to enable a nice graphical system tray icon to show
wireless signal strength?

Any pointers would be appreciated - the Broadband Network Utility is
nice, but I can't seem to get it to put a signal strength indicator in
the tray.

Thanks!