This is weird. I suggest to backup your wallet.dat, and start Bitcoin Core with command line options -zapwallettxes and -rescan. This removes all unconfirms transactions and reloads all confirmed transactions that belong to the addresses in your wallet.
I'll do this and update you with results.
After some google searching i figured out how to do this, and i ran -zap and the bogus transactions that have been in my wallet are gone and all the respective satoshis are back as well!! Now.. what to do about that 0.01 btc that was sent to that weird address...