This is the first cover I've made in a while.

Ugh... making a cover normally takes forever, but recording making a cover makes my computer slower, then when I'm done with one part I have to edit the recording.

Part 1: Cropping and rotating the front cover is done. The program I used, Wink, doesn't export to a video apparently. I can choose between *.swf (flash file) or *.exe (Windows executable). The program is open source, so there isn't any malware in the exe. If you want it, you can download it from
here. I may switch to another program for part 2. I chose Wink because of the annotation ability, but maybe it wasn't a good choice. If your resolution is higher than 1280x1024 it should look normal.
You said you wanted to make STACKpak cases? STACKpak cases are like 2.5 times as wide as a regular DVD case. Most of the time they are only used if what you wanted to store is on multiple discs. Is this what you meant? If you plan on casing all of your games, you might want to reconsider. People here are running out of space when using regular DVD cases. Maybe you should consider DVD cases or thinpak cases. Creating covers would be easier with those cases anyway.
If you still have the manuals for your games, it should help when creating covers. I know my manual for RollerCoaster Tycoon 2 is only a little bit smaller than the box, and it has the same boxart too.