Everybody knows that Staples will have the 20GB 5400RPM HDD for $79 - $20 MIR on Sunday/Monday. But you can order it over the phone from staples.com (where it's $99), pricematch their own B&M stores (where it will be $79 on Sunday and Monday), and use one of the several $25 off $75 coupons floating around, for a total of $35 after coupon and MIR. Of course you must wait until Sunday morning to do that.