Okay, so I finally caught one of the kittens! Poor guy is so sick, he really doesn't have the energy to run away (I caught him by simply picking him up, while he was eating, and he didn't even squirm). I really wanted to catch a sister to keep him company, but they're perfectly healthy and much more wild.
I'm taking him to the vet this afternoon, because his eyes are goopy and he's sneezing. This morning I taught him to use the litter box... he pooped on the blanket, so I moved it to the litter box and put him in and took a paw and covered the poop. Then a few minutes later he peed and covered it himself!
Right now he's exploring the room, because he was whining so much I let him out of the cage. He seems perfectly tame! Just wandering around, checking things out... he does sort of cower if I come up to him (especially too fast, or don't crouch down first), but he doesn't seem overly scared. He'll sit in my lap and let me pet him for a few moments, but then gets anxious to get down and go exploring again.
I'll try catching sisters again today. I got a trap off E-bay from some company, so I figured it would be better than a used one... but it's a piece of junk. The trigger is VERY sensitive, and the door slams down at any little touch. I'm afraid it'll end up skinning a tail or something. So I'm going to try to rig it up where I pull a string and have the door go down that way, instead.
Chert, Topaz & Tourmaline to come later... I hope!