I am a stage performer and use my ipad-2 now, to play my music from the stage as well as display my song book / lyrics. I have been, so far, using the lyrics stands to prop the ipad on. Could someone please suggest a sturdy floor stand built especially for the ipad? Pls note that the performance involves a lot of dancing and movement which tends to make some stage floors shake a bit. The stand must be able to withstand the tremors. Please suggest asap. Thanks!