One consideration is to make sure you can get a straight stitch needle plate for it. I was given a new Brother machine to take to my charity quilting and am so disappointed that I can't get a straight plate for it. Even if you aren't planning on quilting you still will be doing a lot of straight stitching in your clothing.
Occasionally, I see great machines on Craig's List. I have an older Pfaff I wouldn't trade or give up ever....it's going in my will! I've sewn quite a bit on my nieces Bernina and I like it a lot. Love the feet, they're so sturdy. My next sewing machine will probably be a Bernina but perhaps not a new one as they seem to have a lot of issues.
This is something you may have for a long time so get the best you can afford. Don't be rushed into a decision.
Best of luck to you!