If I was to summarise the best modules in the £60-£130+VAT range it would be:-
1. Team RAM 6400 4-4-4-10 (1000MHz - 1200MHz @ CAS4)
2. Crucial 10th Anniversary (No longer available) (1000MHz-1200MHz @ CAS4)
3. Crucial Ballistic 8500/6400/5300 (950-1100MHz @ CAS4) Gets 3rd place due to great pricing!!
4. G.Skill HZ PC6400 Series (1000MHz - 1100MHz @ CAS4)
5. Cellshock 6400 series (CAS4) (1000MHz-1100MHz @ CAS4)
6. OCZ Reaper series (8500, 9200 and soon to be released 6400) (900-1050MHz @ CAS4)
7. OCZ SLi series (8500 & 6400 1T) (900-1000MHz @ CAS4)
8. GeIL Ultra CAS4 6400 series (900-1000MHz @ CAS4, some sticks do seem capable of more as I got 1150MHz CAS4 yonks ago)
9. OCZ Rev2 CAS4 6400 series (850-950MHz @ CAS4)
10. Corsair Dominator 6400 (850-950MHz @ CAS4)
11. Corsair XMS2 6400C4 (850-950MHz @ CAS4)
12. OcUK PC2-6400 (800-850MHz @ CAS4)
Thats how I'd rate the RAM, we sell it all and make good margin on it all so I am not too fussed as what you guys buy. Obviously those speeds are all based on running 4-4-4-12 timings, if you slacken those down to 5-5-5-15 then yes you will hit even higher speeds.