AppleScript for Duplicating Tabs in Terminal

When I work on Rails, I would like to have two tabs open that are in the same directory. One for server log and another for running commands (e.g., script/generate) After opening the TextMate project file. I type ⌃⇧O to open the main directory in Terminal.

Then I run the following AppleScript.

tell application "System Events"
    -- Need to wait a bit to avoild some conflict
    -- No key should be pressed when this script is being run
    do shell script "sleep 0.75"
    tell application "Terminal" to activate
    -- Change Kotoeri Input to Alphanumeric mode
    keystroke ";" using {control down, shift down}
    set the clipboard to ""
    keystroke "pwd | pbcopy"
    keystroke return
    keystroke "t" using command down
    keystroke "cd "
    keystroke "v" using command down
end tell

I put the script in ~/Library/Scripts/Application/Terminal, and assigned ⌘⇧D using FastScripts.