Spending money (in British pounds) for 10 days in Bali?

I am going to Bali and have just ordered �900 worth of Indonesian Rupiahs (about 11.5million rupiahs) and �100 worth of US dollars ($140). This is for me & my partner. Our accomodation is already booked and paid for so this is just for food and fun. Does anyone know if this seems reasonable? We'd like to have quite a decent time out there food wise and visit lots of places and my partner would also like to go our deep sea fishing for a day (but we can pay for this separately). I was just wondering if people could advise on whether this seems like enough cash for a semi-luxurious holiday out there..?! I've read that it's really cheap but I want to ensure that I'm not being too frugal money-wise. Thanks!