Seed Starting Pt 2: Veggies!

About a week after I started the window box plants, a couple days ago I went ahead and started with the edibles.

So far, I've started the following, all from the lovely folks at High Mowing Seeds:

1. Scallions "Evergreen Bunching"
2. Lacinato Dinosaur Kale
3. Champion Collards
4. Fordhook Giant Chard
5. Italian Flat Leaf Parsley
6. Common Sage

Even though I have never had any luck with broccoli or brussel sprouts, I am still tempted to give them another go... perhaps I'll seed a few of those over the next couple days. And maybe some okra -- though I'm sure I can never grow enough of it in my sun-deficient yard for it to be worth it, my innate southernness begs me to try. Has anyone else in the area (Boston, Zone 6a) had any luck with Collards, Okra or any other stereotypically southern veggies?

In any case, just a couple more weeks and I'll get some tomatoes, peppers and basil going as well. I learned my lesson last year and will definitely not be bothering to start any squash inside, and I figure I will plant lettuces, carrots, beets, radishes and possibly some others really early in the cold frame. And peas and beans will just be directly seeded at the proper time. So I think that'll be it! Any veggies I'm totally neglecting here? I only have a tenth of an acre, but I like to squeeze in as much as possible.