Well, I went ahead and did it, after telling myself I could jolly well do without without any of the apps in the bundle.
Except for The Hit List, which I purchased just days before the MacHeist Bundle 3 (2009) was announced. I ended up gifting it to my Mom, a Mac user (you get to assign the software license to another person on the purchase page).
You can click the image below for a larger version of my receipt.
After following the Tweetblast instructions, I got the licenses for Delicious Library 2 and Multiwinia.
I used the Snap Web Address feature of LittleSnapper (included in the bundle) to perform the screen captures. Blurring out of the license details was also done within that software.