That's an impressive looking collection Chris, I'm waiting for the first ankle biter to fly the nest so I can convert the room into a man cave and put mine on display.
Thus far I've got my eye on a few of these but may end up looking for something with glass or perspex fronts like the one further below to keep the dust off.
Ordered this Tonka earlier today for the collection:
AA33606 Panavia Tornado GR.4A No. 13 Squadron, RAF Marham, Norfolk, "Operation Iraqi Freedom"