Second Mile stores, Salvation Army toy section, Wal-Mart clearance, garage sales and even cheap Ebay junk toys.
All of which are found round and about Birmingham...
(the 'H' is silent, by the way)
But yeah, I've found stuff in Poundland mate! There's 2 Poundlands and a poundworld in Cov, not to mention all the charity shops! I do look on eBay as well, managed to grab loads of great things for my VSF armies.