I agree that the males should be housed separately. Pick up a clear rubbermaid or sterlite container and put the male in there with some artifical plants and other climbing surfaces for the cooling period. Not as attractice as the nice cages you have now but deffinitely a good cheap way to house him during the months of the cooling period.
For the babies, I have been using these dry storage bins I found at the dollar store. They are well, a dollar (CDN), about 10"x6.5"x4" in size and are great for 1-2 baby crested geckos. Stick a fake plant into it, some papertowel at the bottom and there you go. I find my babies are growing well in this setup, and it certainly takes alot less pace to house all the babies I have (8 so far, still have a couple eggs inclubating though, I have already started cooling down).
To find homes for your babies, advertising online could help (not in the forums here of course, but you can always purchase a short term classified account so you can post in the classified section). Getting a table at a local reptile show is a good ideal as well (it is what i plan to to, especially now that a new show is openining up in my area, which is alot closer than the other reptile show I go to regularly). Try a newspaper ad as well, alot of people who are interested in a pet reptile don't necessary know where to look for them, other than the petstore. Get active in your local herp society. Not only does it give you opportunities to meet other herp loving people, but it can get you involved in educational shows, etc, spreading the knowledge about reptiles in general and crested geckos in particular. Giving the ease of care and small caging requirements of crested gecko, they do make a great first reptile pet.
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PHLdyPayne