I like my SKB Stage 5 pedalboard, but I've also wakled through WalMart and seen that they have some rifle/gun cases that would make fantastic pedalboard cases. Probably better selection at a sporting goods store.
For example, for $35 you could try...
http://www.casesandmore.com/Flambeau...e-FLB1021.html
There's some other great options if you're willing to spend $75+