I have removed the Web\bin folder from svn, niether of the other 2 mentioned folders is in svn.
Your suggestion about svn ignore, isn't something I can do globally is it? Each developer can do that on their own machine if they like but it seems uneeded for me as those folders are not in svn already. The only advantage is if right clicking a folder to add new files that might filter out those folders where now I just have to remember not to add them.
Joe