Yup housings are glass, and they come with nice thick rubber boots that seal around the back of the bulbs. The indentation and alignment keys on the back line up perfectly with the stock buckets.
For bulbs, I used standard 55/60W 9003's, which are basically the same as H4's. I bought the Philips 9003 Vision Plus. (None of that blue glass bullshit.)
If I had to do it again, I'd order the kit with bulbs. I spent almost $50 on just bulbs at Pep Boys. Their prices on lighting are astronomical.
Or w/o. This is for a single light, so you'd need to order 4.
If you wanted the stock setup, you could order 2 of the above, and then 2 of these: (It's actually cheaper if you don't go the stock route.)