Turn off Mac sleep when iPod connected

Question

Is there a way to make a PowerMac running MacOS X 10.4.2 NOT go to sleep when an iPod is connected? I can only charge my iPod by connecting it to the USB bus of the computer. The first time I was charging it, my Mac put the display to sleep and I couldn't get it to wake up. I eventually had to shut down my Mac and then reboot it.
I'd like to be able to set my Mac to sleep normally when nothing is connected but to stay awake with the iPod connected. Is this possible?

Answer 1

Thanks for the help.
However, I posted this question in another forum and was pointed to an Applescript which utilized the 'pmset' command to change the sleep settings. With that knowledge I was able to write a Unix csh script which checks to see if the iPod is mounted and, if so, calls the pmset command to disable sleep. If the iPod is not mounted, the pmset command is called to enable sleep. In case anyone is interested, here is the script:
#!/bin/csh
if (`\ls /Volumes | /usr/bin/grep iPod | wc -l` != 0) then
/usr/bin/pmset -a displaysleep 0 disksleep 0 sleep 0
else
/usr/bin/pmset -a displaysleep 15 disksleep 30 sleep 30
endif
I then used the Unix 'cron' facility to have the script run once every minute. So, once a minute the system checks to see if the iPod is connected and, if so, disables sleep.
Thanks anyway for the suggestions.