I've started writing a java application that will send your skype chat history to any gmail or google apps account you have, even if you use skype in multiple computers.
The first version is already completed and just dumps your chats in the file system. The next step is to make chat history consolidation, allowing dumping multiple skype histories in the same directory.
And finally, the first release will send your chats to a gmail account.
Keep checking to learn when it is done!