I'm a Janome owner and fan, so i expect a Janome Magnolia should do nicely.
You might also want to consider one of these.
each includes more features desirable for quilting, but lower price points.
Brother-PC420PRW-294
I have this one and love it!
every bell and whistle i like except a wide throat.
although portable, it is a very solid "dealer quality" machine.
it doesn't come with an extension table, but it does include a fancy-shmancy hard cover.
http://www.amazon.com/Brother-PC420P...sewing+machine
I also have this one. it weighs (and costs) a lot less than the PC420; comes with an extension table; but does not have the automatic thread cutter.
http://www.walmart.com/ip/Brother-13...Q9185/29176878