Hi..I posted on the above the link re the Brother 770, really good machine. I now have a second hand Husqvarna Designer 1 which I love. It is an upgraded one that has a USB port not the floppy disk.
downside to the machine is that it is really slow in comparrisson to newer machines to load the design and the info panel is a bit dated....however the stitch quality is superb....you can now pick these up really cheaply so maybe worth looking at as long as is in really good condition with all hoops etc.
Most people adore their machines....the end result is dependent on you taking the time to stabalise and position the design correct.....I'm sure you'll love it whatever you get...I really love mine