I started vaping with a 901 too, and after finding this forum I decided to get an eGo, which has a closed battery with a button you push when you want to take a drag. The eGo has a battery life that is probably four times the 901, which is why most people who start out with a 901 end up upgrading. I've been vaping since August, and I went from a 901 to an eGo, just bought a wetbox, and my Saber Touch is on it's way. I had no idea what a Saber Touch even was three months ago, but this forum has really helped me learn (and spend all my savings from not buying cigarettes!!).
The most important things at this point is you took the plunge and bought your first personal vaporizer, and you found this forum. You'll find more info than you'll ever even need, and lots of people who are more than willing to answer your questions. I actually stumbled upon the blue cart filler when I was placing one of my first juice orders from strictlyejuice.com, and I was really happy because I don't like the white stuff that comes in blank cartridges.
The best advice I can give you is to spend as much time as you can reading the wealth of knowledge on this forum, watch all of these videos
http://www.e-cigarette-forum.com/fo...-videos-newbies-particular-broke-newbies.html, order some sample juice flavors, and don't be afraid to ask questions. I also found that the chat area is great for getting an immediate answer (when my eGo arrived with no instructions and I wanted to know if I had to charge the battery a full 8 hours, I was happy to find out that all I had to do was charge until it was green, and then I was good to go).
Welcome to the forum and vaping!