Blu-ray.com forum members have the heads up that Best Buy is matching Wal-marts Blu-ray player deal. They will match the gift card for any blu-ray player including PS3. This includes the MGS4 Bundle:
"Best Buy sent out a memo to all stores stating they will be matching Walmart's $100 gift card offer on all Blu Ray players. The memo says to use the same Package SKU# 6867688 as last week. It clearly states the PS3 subclass, which the MGS4 bundle is classified under.
Update on my previous MGS4 Bundle stock, I check BB's RSS and it showed most stores receiving between 22-60 units at launch. The stores with Midnight launches were getting 40-60, non-midnight launch stores getting 20-26 units."
There is also an online link to Best Buy for finding Midnight Launch stores!