MSI Wind U160 for 350 is the cheapest on newegg.com
MSI product page
as far as i can see it doesnt have any gestures, but it hits all of your other requirements except for the budget.
man this isnt easy
Gateway
now with this one it has gestures, but no Bluetooth and its alos 350 squids
so you have to choose
bluetooth or gestures
personally i would go with the extra hardware and forget the apple ideas
but those are what i found
here is the search on tigerdirect.com
EDIT: not all of them have gestures
He's looking for a shop that will ship to the UK, I reccon.