I tried to import my old Keychain backups. As it seems, Keychain tries everything to prevent it :/
It worked somehow but it was very “unmacish”. I had to copy my *.keychain files to ~/Library/Keychains and then create a new keychain with the same name as the copied files. Keychain presented me an error but imported the old keys as a side effect. Well…

The new Mac Mini arrived! Yay! The good news are that it feels much faster than the old Mac Mini and it has Frontrow. Mind you there are also bad news… I didn’t have much time lately - only switched it on for three times. The first time Safari crashed. The second time Mail crashed. And now i had a complete freeze (bad memory access) :/
There are some other annoyances… Azureus does not work with the Intel Mini, Windowdragon uses Unsanity’s Application Enhancer (wich isn’t UB now), Virtue lacks a pager (that’s why I am using Desktop Manager now) and somewhere else children are starving to death. It’s all about perspectives.