Hi Rory ,
My name is Marisa.
Don't know what's your plan after Jakarta but just to let you know that I'll be traveling to Sumatra from Jakarta on the 30th November. Going to stay in Sumatra to for 4 or 5 days to get lost in the jungle with the Orangutans ahah :p and after that I 'll get a ferry to Malasya and then is Thailand, Laos, Cambodia and Vietnam.
Just let me know if you are by any chance going in the same direction.