First off, welcome to the boards!
As far as Bertie's Every Flavor Beans, well they've been out on the market for years. I used to buy them for my nieces and nephews every year and their parents told me how they only ones they got offered were the Dirt and Ear Wax varieties as the kids would stand back and watch for a reaction.
Here's a link to Amazon selling some;
http://www.amazon.com/Harry-Potter-Bertie-Botts-Jelly/dp/B0002AB4KS
The flavors mentioned in this pack (they vary with different sized packaging a bit) Bertie Bott's Every Flavor Jelly Beans - includes Watermelon, Pear, Ketchup, Blueberry, Cheese, Pizza, Banana, Marshmallow, Sausage, Onion, Wild Cherry, Mashed Potatoes, Cinnamon, Gravy, Fish, Cranberry & Apple, Peach, Pink Grapefruit, Pepper and Lemon.
I would imagine they're going to change them up a bit for WWoHP but you never know.