I,m in manchester, and last week i gave up playing UT, which i have played since my modem days. ADSL was far better for gaming than ntl has ever been.
Even on Jolt Uber servers [supposedly, but not always best] i have seen guys from Portugal ping almost the same. Mine are usually higher than most, except quite a few other NTL dudes.
As above, depending on where you live, and if theres no knot in the fibre optics, you might well be ok.