Opening a terminal window to a specific directory from a bash script
Here is a small script I knocked up :

#!/usr/bin/osascript
on run argv
  set dir to quoted form of (first item of argv)
  tell app "Terminal" to do script "cd " &amp; dir
end run


If you save this and make it executable

chmod +x script_filename


and then run it 

script_filename ~/Desktop


then it will open up a new terminal window and change to the directory in the argument.