Yeah, Ryosnk. Their DVD version has the map making tutorials that the collector's edition had, just not the microphone.
And the only difference between this and the "Editor's choice" version is that the editor's version comes with some patches and bonus packs installed, that you can just download anyway.
Added: To get the Pricegrabber rebate you have to sign up on Pricegrabber, write a review for the game, request a rebate form and fill it out, then send the rebate form, UPC cut from the box, and your receipt you got when buying it to Pricegrabber. A month or two later if they accept it, you get $5.