Like Reid, I start my peppers around the end of March, tomatoes in mid April; they start out under lights in the house (in a closet, actually), then get moved the greenhouse once they're at least a few inches tall and as the weather gets warm enough. I generally plant out in the garden at the beginning of June and protect the tomatoes by wrapping the cages with clear plastic, and cover the peppers with Reemay over hoops. Years ago I did start my plants earlier, but they always seemed to get pretty unruly by the time I was planting out, so tried the timing I use now and found that my smaller plants always seem to make up for the lost time once they get set in the ground -- must be the compost I always give them a good dose of at planting time!