jbee70,
You should probably talk to your partner about how she sees kashrut. I am also a convert to Judaism and I have found that keeping kosher is a way that I am able to affirm my choice and commitment to being a Jew each and every day. I was the one to make our kitchen strictly kosher, not my Jew by birth husband. You might find useful the first chapter of the book by Samuel Dresner "Keeping Kosher: a Diet for the Soul (A Newly Revised Edition of The Jewish Dietary Laws):
http://tinyurl.com/2uhnr5b(or if the above link doesn't work go to
http://books.google.com and search on "dresner dietary")
I read an earlier version of this little book and found the first chapter called "The Problem of Understanding" quite interesting. I had already taken on the commitment to keep kosher when I read it, but a lot of what was said resonated with my feelings toward kashrut. You might also find that the summaries of the various laws of kashrut are helpful to you.
It will take a little getting used to on your part to think about your use of kitchenware so as not to accidentally treif items by using them with the wrong type of food. On the other hand, by your efforts, your partner will know how much you are willing to do on her behalf. It made me feel truly loved that my husband went along with the kashering of our kitchen because it made me happy.
I will add something to Benjamin's comment: although your guests can eat at your home regardless of whether or not they keep kosher, one difficulty is that you might not be able to allow your non-kosher guests to make and bring home-cooked food to be served at your home. Recently, for Thanksgiving, my cousin (who happens to be married to a non-observant Jew) really wanted to make desserts to bring (and she is a fantastic cook having even taken a professional chefs course). I told her she didn't have to bring anything, but since she was game, I went through a very detailed description of what she would have to do to cook something that could eaten with my plates and utensils (self-clean the oven, disposable aluminum pans, hechshered pareve ingredients, etc....)
On the other hand, for my family, going to a strictly kosher kitchen made entertaining more easy in general because we have so many friends who keep kosher. Even before I kashered our kitchen and bought a lot of new stuff, we did have a full set of kosher-Dairy only cookware, plates, and utensils to accommodate those friends.