The traditional becak is so much fun and more comfortable than the rickshaw, India. Although very hard to steer! It is amazing you can still find the becak in mountain-villages where the becak-rider is trying to make some money. Travelling to Pelabuhan Ratu (South West-Java) we saw the "mountain-village" becak ... oowkee, he had a little siesta when I took the pic.
Most travellers start at Jakarta, West-Java, the capital of Indonesia.
When going by city bus the cheapest one is a small, pale-blue minivan, operating out of Kuta Bus Stasiun (remind the letter of "M"), and charter about 10.000 Rp. and from Sukabumi 8.000 Rp (is 2 1/2 hr), like local buses that run throughout the day.
The small micro-minibuses all charge about 10.000 Rp from Bogor, and you pay double for the air-con buses.
Get some tourist-info in the Jakarta Theatre building, Jakarta. It is opposite Sarinah department store (Jl. Wahid Hasyim) and at the Southerly entrance of Gambir station. Or hire you a bemo yourself (with driver about 50$ a day) ...