Holly, I am rahma on CF, and I've left you a message on your LJ in the past.
Converting to Islam is not something that you can change your mind about 50 times. If you say la ilaha il Allah, Muhammadur rasul Allah, it must be something you have a firm belief in, and not something you will decide to change 2 days from now. Islam is hard and has a strict moral code - harder than catholicism.
IF, and I emphasize IF, you want to convert to Islam, FIRST, study. Read the entire Qur'an. Read a few books on Islam. Study seriously. Do not jump into this like you've jumped into being a catholic, baptist, and episcopalian.
If you want to talk more about Islam, I am more than willing to do so. But please be aware I and other muslim posters here will tire quickly if you leave islam, come back, leave islam, come back, etc etc etc.
To the other posters on this board, please be kind to Holly, but be aware that she jumps and switches religions almost as often as people change their socks. Show her the Rahman and Rahim of Allah (swt), answer her questions, but be aware that there is a 99.9999999999999999% chance that she will convert to another religion (and soon).