That sounds like a wonderful idea. I have the variegated aloe vera as the center piece/show stopper and it grows shallow fat roots so that I can have it in a shallow and wide pretty pot. I have some Dudleya gnoma McCabe 'white sprite' in with it and hope to add some of the Crassula capitella ssp. thyrsiflora (Thunb.) Tölken 'Aanteel-poprosie' if I can ever find it locally. I'm just not sure about buying plants and having them shipped my one experience with doing that was awful so now I try to stick to seeds and bulbs.

If you have a fair amount of space you might want your focal point to be a 'Bonsai Crassula'
Scientific Name: Crassula sarcocaulis Eckl. & Zeyh
and then have a carpet of portulaca at it's feet. Mine has bloomed most all of the fall and some during the winter indoors although it has needed pruning a few times.

I hope I've been of some help. Good luck with your indoor garden.

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I have a small jade plant and a black prince and cape blanco. Can I pu them together in a dish like pot with jade in the center?

I forgot about my kalanchoe plant. I have 3 stems in one pot the same one since I bought. It is flowering beutifully in my kitchen window. I was thinking of separating the three stems and putting one of them in the center with black prince and cape blanco and the other two with the smaller jade. That way even after the kalanchow stops flowering the foliage would look good with the others. But then when it is time for kalanchoe to go in dark for some time to induce flowering the others have to go in with it too