No shortages here in UK for PS3 or 360, not sure about the wii.
Just to prove it to stop some backlash
In UK Play,Game/Gamestation and HMV are the games selling places
http://gamestation.co.uk/Consoles/PlayStation-3/Sony-Playstation-3-120GB-Slim-Console/~r417194/
http://www.play.com/Games/PlayStation3/6-/GenreBrowse.html?searchstring=Consoles
http://hmv.com/hmvweb/displayProductDetails.do?ctx=3071;6;-1;-1;-1&sku=271339
http://www.game.co.uk/Consoles/PlayStation-3/Sony-PlayStation-3-120GB-Slim-Console/~r343273/
The only console i can see out of stock in some places (Play) is the 120gb version. However the deal for the 250gb version is like £10-£30 difference, if someone wanted a PS3 that badly, im sure they would stump up that for it as it is tiny amount.
What i find interesting is that the 250gb version is everywhere, maybe they make more money from the newer 250gb version and thus are trying to sell more of those?
Essay Pro