Thanks for the replies... Using it during our "real sessions" : That's what I plan to do too !
I was already using a netbook ( or my android mobile ) with a custom dice roller ( based on the online roller made by Jaj22 ).
I integrated 2 mp3 players with independant playlists so I can use some ambient ( rain, storm, etc.. ) sounds in one player and music in the other one.
Of course , this was made for personal use only and all the copyrighted materials, etc...