Planning my first organic container garden

I'm really new to gardening, and excited to get started, but I have no idea where to begin. I live in Israel, and wanted to start with the following:
tomatoes
cucumbers
potatoes
onions
zucchini
carrots
These are all vegetables that we eat on a near daily basis. I'm not sure if that's too big a list, or reasonable for a first attempt. I should add that this is a part-time endeavor. I realize I'll need to put in more time in the beginning to get everything set up, but then in terms of maintenance I have to be reasonable as to how much I can dedicate.

So my first question is, is this list reasonable? Is it too much? How much time will a garden like this require in terms of care?
Also:
How do I get organic seeds?
When do I need to plant? Is there any way to ensure that there will be fresh vegetables all year long? (You're probably laughing your heads off at that question, but I know that cukes and tomatoes are grown here year-round.)
What do I need to look out for in terms of soil and pots (and anything else?) so that I won't have toxins leaching into my veggies? There isn't a lot of organic awareness here in Israel, so I really have to know what to look out for.
Anything else I should be aware of?

Thanks so much, and I'm looking forward to being part of this community!

Seed savers has a good organic seed selection and an easy to navigate site for a beginner. Not sure on seeds and international distribution.......

As to soil and containers....hmmmm

I would try to stick with clay or some natural material container, and even then wash it well with vinegar and rinse well.

Soil......can you find natural soils in a wooded area that have no chemical input? If so harvest some natural soils! There will be more "weed" seeds in a natural soil, but there will be more beneficial microorganisms and that's what you need on your side.

hau, Miriam,

organic gardening in Israel Try here for local organic seeds

container gardening in Israel Grat blog by a container grower in Jerusalem

Those should get you going, welcome to permies and good luck with your growing adventure. Shalom

Genesisseeds on the net sells organic seeds in Israel.