I dont actually work directly with the PS2 side of Sony (thats consumer). I work for the Broadcast part of Sony in Engalnd, but I do get info every now and then aswell as good discounts on all Sony gear:) For Europe the main distribution of PS2 is in Holland, not England.
Heretic> The 20 million units is how many have actually been sold to the shops i.e. no longer on Sonys inventory. Sony are expecting a sales increase and that is why production has been increased. I very much doubt that there will be a shortage, although market forecasters can get it wrong. I really wouldnt worry too much though as even if there was any shortage it would only be momentary.