I might be using the following stuff from the old JTAS magazine in my campaign:
Tree Karkens (JTAS #1) are cool critters - I think I'll place them on Gollere.
The Model 317 Pressurized Shelter (JTAS #6) seems to be quite useful in general as an outpost, though I might prefer more interesting shapes.
Springers (JTAS #9) are interesting and might fit the same planet I'll set Safari Ship on.
Bwaps (JTAS #11) are a bit far from their home in the ORV, but a few will be present, especially in the Imperial administration.
Miniphants (JTAS #16 are quite an interesting example of genetic engineering.
Luugiir (JTAS #18) are very cool critters; I think I'll place them on some of the Vilani-colonized worlds.
JTAS #20 has Aslan Phylosophies - perfect as background to this campaign!