Still waiting for update.zip file. I refuse to root and I don't run windows.
Then these ROMs are not for you as they are pre-rooted. Also, don't you need at least SPRecovery to push an update.zip onto your phone anyway?
Nope. The stock recovery console can boot to any correctly signed update.zip file - which a release candidate or official OTA release will be. The unofficial ones won't be properly signed, so the stock recovery console will reject them (but SPRecovery or Clockwork, etc will accept them)