Now you see Mr Dom, in the VAST majority of cases, the problem is not with the line speed, but with the computer. The majority of computers can't handle the incoming speed, so slow it down.
If you do a speed test, it measures it at the speed your computer processes it, not what you actually receive it as.
For instance I get 8MB, I usually have 7.6MB hitting my router....and I live in the middle of knowhere, miles from the exchange, yet a speed measurement in IE may only give me 3MBs....and this is on a 4GB...Quadcore......It all depends what your system is, and what it is doing.
Before complaining, always work out the average speed hitting your router over a few weeks, don't use online speed tests, they are meaningless.
