Congratulations on fostering. I LOVE it!! I wish I would have started sooner. I can't get enough (HA! I guess that is why I have 10 fosters most of the time)

Make sure you have a seperate room made up for the new cats. They will be lost, confused and scared. they need time to deal with the new home and the new people caretkers before they should also have to deal with new cats. Food, water, litter, toys and comfy places to sleep, is all they need, that and a lot of love and patience.

Good luck! Have fun.