I think you can scarcely go wrong with a Busch & Müller headlight. The headlight is where you should spend the most money. The only problem is that there are SO MANY different models. It takes time to figure out which one is right for you. The model numbers add and subtract letters as you add and subtract features. Some have daylight sensors which turn the light off or down in daylight. I don't want that feature. All have the standlight feature, as far as I remember. You definitely want that. Whether or not you buy from them, check out xxcycle, as they seem to have every model ready to ship. Their prices are good, and shipping (from France) doesn't take too terribly long.

If you are going to use a rear rack, I'd say a B&M tail light is your best bet. Be sure to get the mounting bracket for it. See my article on how I connected mine onto my Bianchi Volpe. If you are not going to attach a tail light to your rack and figure you'll put it on your seat stay or rear fender, get the Spanninga Pixeo. It's a very elegant little light. It doesn't flash, though, and I think a flashing tail light is a good thing, so I normally run the dynamo tail light as well as a flashing battery light. Two or three tail lights can't hurt, and they don't take much energy from either a dynamo or a battery, so they're all convenient.

If you have any more questions, please come back here and ask. We can help you get it going, and once you do, you'll be really happy with what you have.