We just returned from our 10th trip to Bali & are keen to recommend a very nice bloke who has a good clean a/c van & quotes very reasonable prices up front (unlike most opportunistic drivers in Bali). Nyoman is based outside The Sinar Bali Hotel in Jl Padma Utara ( on the bend between Melasti & Jayakarta Hotels) his phone no. is 081 5577 5989 when you are there or +6281 5577 5989 from OS. He is a careful driver & speaks quite good English.