Sorry Andy, ADSL is not available in Bali. There are some test pilots going on in Surabaya and Jakarta. So I think in about 1 year it will be available in Bali as well.
I was in Bali as well last February, looking for a good Internet solution for my business. After many visits at ISP's I am almost sure I have found the best deal. The name is Blueline. Check it out:
http://www.blueline.co.id
That's the ISP I am going to use when I emigrate to Bali this summer.
Good luck,
Dogi