Where is the cheapest place you can buy Pokemon HeartGold and SoulSilver in Los Angeles?

I think the cheapest would be if you wanted a pokewalker or not. If so, I would go to Toysrus because mine was only 39.99, and it was on sale. But the pokewalker is very fun and it does make the price go up. If not, I would try Ebay because you might be able to find a Buy It Now.