My first Bernina was a gently used 440 (a sweet machine) that I got for a great price. I then traded her for my current 730E (more bells and whistles). I just absolutely love my Bernina! I have used a Janome Gem Silver and it just didn't work for me at all (wanted to use it as a travel machine). Traded it in on one of the new Bernina 3 series, a little 330 which is just perfect for travel. Love them both!
That being said, you really need to go try both out extensively before you decide. Also, be willing to consider a gently used machine. That is the best way to get the most for your money.
Good luck, and don't forget to post pics for what you decide on. Have fun!