Antec VP450 PSU - exact same price at Walmart and Amazon.
Seagate BArracuda 1TB HDD - exact same price
i5-4690 - Walmart is $4 cheaper. But in reality, its coming from TigerDirect.
None of those are available in-store, so it has to ship anyway.
GO through each part, and research any price differences at various stores. Walmart, Amazon, Newegg, TigerDirect.