The first ram does not have flashy lights. Its all about latency and the Corsair is 2.5 at the highest the first ram will run with tight timings at a higher frequency than regualar low latency ram.
any of these except the lower powered model
http://www.overclockers.co.uk/acatalog/Tagan.html
also look at these
http://www.overclockers.co.uk/acatalog/Hiper.html
The differences is stable voltages and enough oomph to cover the gfx power requirements multiple hard drives etc