Janome machines are always my choice. I have a 9700 which does regular sewing beautifully and also is an embroidery machine. Check it out on the Janome.com site. I have friends who have brother machines and they love them. I also have a friend who has a Designer I and she told me a while back that Husquavarna did not make some piece for it and she was upset. Check it out before you spend the $$ in the Designer I. I, personally, prefer the Janome 9700 cause it does both and if my main machine (Horizon) goes out it is great to fall back on.
Good Luck!!!