I have use www.uncapped.co.za (512k) for about 3 months. They offer good service, I got full speed consistently. I don't download as much as you guys but on average I would download about 20gigs a month
If you do 100gb per month, I dont mind, Yes we allow gamming. We also allow newsgroups.
This is on the IS backbone, we are working on another project to use UUnet, but we are not sure about the long term intentions with ADSL.