I think changing your name is definately a great idea.
The name is confusingly similar, which does fall under the trademark law, and Jennifer does have a legal right to protect her business.
Think about it... you wouldn't come up with a name for your cloth diaper business called, "Huggeez" and expect it to be all cool. kwim?
Anyway.... on another note... finding a name can be a struggle. I would ask the state of Washington what the cost of changing the registered name is... it might not even cost. I think here it costs something around $10.... it's best to ask. I'm pretty certain they will let you change the name. Registering your name with the IRS is free, so no worries there. You call their 800 number and can register your name with them in less than an hour (this protects you legally when tax time comes around
I register and purchase domaines at www.worldwebhosters.com
and it is very inexpensive. I pay $0.99 per month for hosting.
You can't beat that price! It's more expensive once you have more traffic and need more space, but I've paid just over $2 for a .org informational site and upgraded it from the 99 cents a month after it got busy.
MOthering will let you halt your advertising, then change your banner and everything... no problem. I'm sure Amity will too if you are advertising there as well. Just email and ask.
I wouldn't recommend Heinys in your name, since it is so well used now. Hip Heinys sounds cute, but I would fear that it is too close to Happy Heinys. Maybe not, though.... you could email Linda of Happy Heinys and ask if you like that name, though. Hip Bottoms sounds really cool! I want that one if you don't. You will want to research Mothering, Diaper Pin, Diaper Hyena, and Amity for whatever name you do choose. You will also want a list of wahms just to be sure you are not choosing a name that is too close to another. I think... think... that there is a list of wahms somewhere on Amity. There is one on wild and wooly goods as well. www.wildnwoolygoods.com
I believe is the addy.
Maybe zone isn't taken... something like "The Bottom Zone" or something like that.
I like coming up with words that I don't see in the diapering world, and expanding on them.
When I was coming up with a name for my business, I thought of "The Enchanted Garden" and thought is was SO perfect. I wanted it SO bad... it just really fit. I even thought of taking pictures of diapers and making them look like blooming flowers.... you can imagine. (I'm a little cheezy sometimes) Anyway... researched the name and found, "Baby's Enchanted Garden" and decided that they were WAY too similar. I didn't go with that one. The same thing happened with the next one I thought of ... Earthy Babies. There was already an Earthy Baby. So, as you can tell, it happens. We think of the perfect name, and it's taken or almost taken.
There are many names not taken, though.... you just have to think of them.
What type of things do you like? Are you into celestial, fantasy, retro, ???? Take that and expand on that. I like Fairies.... my daughters room is lavender with fairies. I also love frogs and themes like castles, queens, princes and princesses. I've always referred to my son as my prince. So.... my themes were born. Enchanted fit, and everything from there fell into place.
Good luck, and I hope that everything ends in a handshake and happy wahms everywhere.