Maurice - 11:31 am on Aug 5, 2010 (gmt 0)
SDSL is the symmetric DSL which a lot of business isps will offer this C&W do and I am sure where in BT’s price list they will offer it. It is more expensive but compared to the cost of a real WAN link its dirt cheap - lookup the prices for a E1 (T1 in Yank speak) if you don’t believe me – when I looked it up you where looking at several K for the install charge
Re router if your wanting to do high availability you wouldn’t be using consumer routers any how – having said that you can run BGP on consumer routers the DDWRT replacement firmware will do this – or alternately ebay is you friend look for Cisco 2600’s with adsl modules.
As @lammert says your much better off outsourcing the hosting and letting the ISP /Hosting provider handle the routing issues