I have the Brother machine you are considering. I bought my first one from Overstock.com. It was a refurbished one and really didn't work well. It couldn't be returned so I sold it. I bought another just like it from Walmart. It sewed better but is is so light weight. It is a good machine for basic sewing but I have never tried it for quilting.
I bought a new Jamome that I love and use all the time. It is a Janome HT2008. I think a similar model is the DC10 or something. Check around for a better machine.