You are mistaken. You can't get this drive for $20.
The CC price is $149.99 - $30 WD MIR - $20 CC MIR = $99.99
As far as I know, CompUSA will only PM with the $149.99 price, not the after rebate price.
The $60 CompUSA MIR ends tomorrow, 10/14. What you can do, if your CompUSA is still in stock, and you feel lucky, is buy it at CompUSA for full price today or tomorrow and go back on Sunday and PM it to the $149.99 CC price. You could then submit both the $30 WD MIR and the $60 CompUSA MIR for an after MIR total of $59.99
Not $20, but not bad either.
The CC price is $149.99 - $30 WD MIR - $20 CC MIR = $99.99
As far as I know, CompUSA will only PM with the $149.99 price, not the after rebate price.
The $60 CompUSA MIR ends tomorrow, 10/14. What you can do, if your CompUSA is still in stock, and you feel lucky, is buy it at CompUSA for full price today or tomorrow and go back on Sunday and PM it to the $149.99 CC price. You could then submit both the $30 WD MIR and the $60 CompUSA MIR for an after MIR total of $59.99
Not $20, but not bad either.