looking at getting an ultra sound machine off ebay.....wanted to know if anyone has purchased one through ebay and if so what type and how did it work? did you like it?

look at getting this one

http://www.ebay.com/itm/New-CMS600E-...item3cc60e9021


or this one

http://www.ebay.com/itm/CMS600B-2-Ul...item19ce24be91