I suppose it is manageable (though still cumbersome especially when negotiating the train stations) if I'm only taking the golf bag (and stuffing it with a couple of nights worth of clothes). However, I also kind of like to have the laptop with me so I can stay in contact with the office and family. Decision ...decision....

Thank you all for the suggestions and advices. RRtycoon, thanks for the detailed instructions on trains to Mobara. I need to weigh all factors and make a decision soon.