I've found a very good book called "Daughters of Another Path" by Carol Anway. (You can get it from $0.01 on Amazon) It's about American women who embrace Islam, and their reasons for doing so. I'd recommend it to anyone who has recently converted, or is considering converting, and think/know that their families will have trouble with it. Very eye-opening.
One of my favorite websites to buy hijab and niqab on is www.hijabgirl.com. I especially love the two-piece 100% cotton al-Amira hijabs. They're very soft and comfy, and you can mix and match them. They wash well in the machine, too, although I wouldn't recommend tossing them in the dryer, unless you want them to shrink! They often a few niqabs, but not many. They only have 3 types of abayas, and I think they're kinda expensive. I stick to eBay for purchasing abayas.