Burbank's House of Dreams! by Joe R. at InsiderPages
For a tiny, nondescript shack of a store, it's incredibly well stocked with many different types of hobby-merchandise. From simple, sci-fi model kits to diecast cars to complete train sets, this place has it all--or they'll order it for you.
Read more at losangeles.citysearch.com
PROS: cool, varied selection, laid-back but helpful staff
CONS: short hours, not the biggest selection