Hi; I currently own a RolleiCord IV that has malfunctioned (advance mechanism). I have decided to replace it. Looking on E-bay there appear to be a lot of choices, including another model IV, for about $100 or so. I have seen Yashica and Mamiya as well as various Rollei's. Can anyone recommend a specific camera by make and model or ones to avoid (like Eastern block cameras from the 50'-80's). I am not into snobbery brand-wise and am just an amateur. I liked the Rolleicord when it was working but the Yachica's I have seen are newer and seem to have decent len's in them as well. But I have heard that weak springs are a problem in older Japanese cameras, although I have a Nicca 3S that checked out fine. Appreciate help as soon as possible as I have my eye on several cameras on E-bay and don't know what to do. Thanks in advance!