Well instead of changing the shell to the program i say use Talisman 2 it is a shell replacement program (whihc is userfriendly i might add) and all u have to do is change what u dont like u dont have to have a start menu u dont have to have anything to make it look like a pc this is what i did for my older pc with tv out i made it for a divx player and other things and it was very simple and easy
The best part tho is is saves some ram and resources cause it dosent loadup the windows shell
and when u open talisman u just click shell switcher and it does all the stuff for u so your own shell startsup and windows dosent

its very simple you can download new shells and add your own graphics etc

hey i used it as a informations terminal and its great no1 can ctrl alt del and get into windows just reset the pc

Oh there is a good shell which has password protected gui (dosent show the options to edit on rightclick) and it has a list of games then u can login as yourself (not login to windows again just the shell) and u can change the games which r shown that was used for a games club so the can only play games and the admins can change the games that r shown
Its really quite good i'll show u a pic of my (stupid divx interface)
the big buttons on the left r video audio games then display options
you can do animations movies bmp jpg anything else u can think of even flash movies

and html u could make it so when u select the game it shows info in the box next to it using a html box
and u dont have to have a start button as u can see on my picture i have this bubble that says tasks if u click it it will show u what programs r running so u dont have to alt tab between programs

Ok i'll be quite now i talk to much
