I like your list, many of them I would be planting also.
I would add Swiss Chard and herbs.
For the times that I have needed more pots for starting seeds than I had, I have bought the cheapest of stryrofoam coffee cups, they are cheaper than flower pots.
I poke 3 holes in the bottom with a pencil for drainage and they will last about 3 years.
I also have herbs - catnip for the boys (Oliver and Shiloh), and basil, dill, mint, thyme, and a few others. I think I'm going to do some of these in larger pots inside to get them started, then add to my huge pots with banana plants outside when weather permits.
I'll keep the mint on the patio this time. It took nearly all of last summer to kill off the mint from the year previous. (My mom told me not to plant it in the garden, but I didn't listen).
WARNING:For anyone planting mint or horseradish, beware. It will spread like wildfire, and try to take over everything.