Vista Elevated Command Prompt

Registry hack to let you right click on any directory and open an administrator command prompt. Pretty cool trick. I added /T:4f to the command line to give it a nice, clear administrator designation (red background). My reg file looks like this:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Directory\shell\runas]
@="Administrator Command Prompt here"
"NoWorkingDirectory"=""

[HKEY_CLASSES_ROOT\Directory\shell\runas\command]
@="cmd.exe /T:4f /k \"pushd %L && title Command Prompt\""

[HKEY_CLASSES_ROOT\Drive\shell\runas]
@="Administrator Command Prompt here"
"NoWorkingDirectory"=""

[HKEY_CLASSES_ROOT\Drive\shell\runas\command]
@="cmd.exe /T:4f /k \"pushd %L && title Command Prompt\""

Does anyone know a command line to elevate me? I mean...if I start a regular non-admin cmd.exe and I want to elevate at some point, is there an easy way?