Bear in mind that typical older Kalypsos can only handle around 25 seconds or so of full screen animation. When using a matte/fill combination, that cuts it in half (ie. 12 seconds).

If you want to "upgrade" the Still Store with 8MB of memory, it will be costly through Grass Valley. It's quite a bit cheaper from your local electronics store. However, it pretty much doubles the capacity.

If you need audio with it, the Still Store does not have any. One has to use the master timeline with a GPI attached to a DigiCart or whatever. The audio won't be frame-accurate.

If audio is critical, use a Profile or K2 under Odetics, AMP, or even BVW protocol in RS-422 or ethernet. You can get video animations (matte/fill/whatever) with more audio than you'll know what to do with.

Keep in mind that the extended still store, KlipCache, is an option. You won't have enough available memory without it. Also, since the bug is not fullscreen, you can reduce the amount of space it requires if you "fence" the capture. You can also conserve space by saving the bug and animations as chroma key. Finally, make sure that the "powers that be" realize that the animations will be silent, unless you are also triggering an audio device. The Kalypso will not pass audio.

Yes you will be able to do this.  You have 8 outputs of still store that share up to about a minute of HD animations (whatever that works out to in frames).  So you can have 2 channels of SS doing the bug & you'll still have 6 channels & about 56 sec of animation left.