I bought a pair of these a year ago for £140 which (at the time) was a good price. Today you can pick up the set for £46! I've been looking at upping my RAM to 4GB for a while and these were £68 on Play last week so this is a great deal which includes free delivery. I don't have a 1066 DDR2 board (yet) but I can confirm these work great at 800MHz getting a 5.6 in Vista performance ratings.
The OCZ PC2-8500 SLI-Ready Series are programmed to boot at 1066MHz DDR2 with supremely fast timings of 5-5-5-15. The exclusive OCZ SPD specifications take out the guesswork and provide enthusiasts and gamers with significant overclocked performance with no manual adjustment or compatibility issues.
Each OCZ SLI-Ready module comes equipped with an exclusive NVIDIA XTC heatspreaders for the most efficient heat dissipation and a look that stands out like its performance. With the fusion of the sophisticated EPP memory specification and cutting-edge, high-speed OCZ DDR2 architecture, the PC2-8500 edition is the ultimate breakthrough for advanced SLI platform performance.