Lot of chat on here lately about tool boxes.
I picked up some office drawers for free and they are excellent quality, certainly better than some of the cheaper halfords clarkes type stuff.
Seems to be some of it floating about on gumtree and ebay.
Bisley is the brand of the stuff.
No wheels but probably simple enough to add.
Might be worth keeping an eye out May pick up a bargain locally.http://m.ebay.co.uk/itm/131210983974?nav=SEARCH

I’ve got one of those…perfect for screwdrivers/pop riveter/spanners etc.