Andrews & Arnold (AAISP) has a reputation for outstanding support, and carefully crafted packages tailored to business use. After a short trial period a new package aimed at the discerning home user has been launched, it offers a 25GB download allowance for £25 per month. A fatter version offering a 100GB download allowance is available for £10 per month extra and for those who want more than that, top-ups are available at £10 per 50GB. All the Home::1 packages include a static IPv4 address and a /48 of IPv6 address space, and a free WiFi router.
For those chasing a bit more speed than the standard ADSL or ADSL2+ services, FTTC is available, with the 40/10 product costing an extra £10 per month, and 80/20 another £10 per month on top of that.
The download allowance will look small to many, but this careful management lets the provider maintain a low latency (ideal for gamers) and is part of their focus on quality, which includes things such as line monitoring for connections. Another big difference is the variety of ways you can contact support, there is the usual telephone and fax, but you can also add SMS, email, irc (both IPv4 and IPv6) and usenet.