[↑ Mailyfesux: kudos for following up to your post and marking it solved]
Another easy solution would be to boot from a Boot132 CD and fix the messed up
com.apple.Boot.plist file
We have a vanilla
com.apple.Boot.plist file in this thread. Anyone who snafu'd his/her, will find it easier to start afresh with an unmodified one and add options one by one while testing between reboots.
[↓ Beerkexd: Nice addition
. I was about posting an untouched one ]