Sticking strictly to European brands...
Chord Company Silver Screen is good stuff, and only about 6 GBP per meter. QED Silver Anniversary seems pretty sound and highly regarded, also around the 6 GBP mark. However, if you can swing it, QED Revelation is supposedly the stuff to get as far as price/performance and it's still not that pricey at about 15 GBP per meter.
Chord Company Silver Screen is good stuff, and only about 6 GBP per meter. QED Silver Anniversary seems pretty sound and highly regarded, also around the 6 GBP mark. However, if you can swing it, QED Revelation is supposedly the stuff to get as far as price/performance and it's still not that pricey at about 15 GBP per meter.