Every Friday, Fry's Electronics has a sale that usually lasts till Tuesday, and whatever sales they have advertised in the paper at their stores are good online. Only difference is you gotta pay shipping as well when on the store.
Believe it or not, sometimes you can find great pirces on hardware on Amazon.com. Even when most stores were still selling 160 gig IDE hard drives for over 120 bucks, I found a bunch for 65 bucks and under on Amazon.com. I bought 3. :-D