I usually have a sheet of paper over mine to give a more textured and controlled feeling.
Also, contrary to most users here apparently, I prefer the smaller tablets that let me rest the side of my hand on the tablet and swivel about that rather than have to have my whole arm move.
No experience of the Intuous4 though but love my tablets.
Alan
FlashXDR,XDcamHD,XDcamEX,D9 etc
FCS,AE,Combustion,LiquidSilver,Vegas,Edius,
G5,MBP,Vista64,XP