San Fransisco winter = rain, rain, rain

I live in San Francisco and am new to Bonsai as of this year. I started my collection in the summer. I have 5 trees (I know, I've gone a bit overboard):

- Juniper (Porcumbens 'Nana')
- Indian Laurel Fig (Retusa Nitida)
- Fuji Chery (Incisa Midori)
- Lavender StarFlower (Grewia Caffra)
- Giant Coastal Redwood sappling

I know, I'm crazy trying all these at once. They've done well so far, but I've only had the Grewia for a few weeks and it's starting to yellow.

I have moss on all of them that I've collected from a nearby tree (and I'm growing my own on a few trees) so I spray the moss daily. I pour water into the base of each tree probably twice weekly. The Grewia is ver bushy and looks healthy, but since I brought it home a few of it's leaves have yellowed (mostly the younger leaves).

Here's my question: where is the proper place for these trees? I have shelves across two windows that I have them at. It's cool here in San Francisco at night so the window is almost like being outside as far as temp goes. Our kitchen is rarely heated. I know that Bonsai's do best outdoors and during the summer I kept them out there over half the time, but now it's winter here in SF, and winter in SF means rain, rain, rain. We get Seattle's weather.

If I put them outside will they do better? They'll get tons of water, which I think is worse than having them indoors.

Any suggestions about these trees in particular? I've read a few bonsai books (that of course don't talk about most of my trees) and have read lots online, but rarely find any info on the cherry, the starflower, or the coastal redwood (which is obviously not a common tree).

Any suggestions would be much appreciated.

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