I'm working on something very similar right now.
Written in AHK.
so win only sorry Macsters...
Image may be NSFW.
Clik here to view.
Scans a folder of your scripts and displays them in a panel (see above)
you can click any one like a button.
or you can eg. 3 enter.
Panel can be dragged to where ever you want it.
Still playing with the finishing touches and will post the finished result once I am done.
That will be next year some time, as I am finished work for the year.
Run, % "[Full path to]\Illustrator.exe " Scriptlocation JSName
this is my AHK line to run the script.
any reason for the cmd.exe section