MobileMe bookmark sync with Opera I am forced to use Opera instead of Safari on windows, and would like to sync my bookmarks with MobileMe. Is this at all possible?
Not with MobileMe's built in sync function, it only works with Safari.
You could use Opera's Link, which might work ok for what you're after -

Can I use other browsers to access my bookmarks?
Yes, you can log into a web-based user interface using Opera browsers, including Opera for Mac/PC, Opera Mobile or Opera Mini. You can also access your bookmarks using other Web browsers like Internet Explorer, Firefox or Safari. (Opera faq)