Super Talent’s T1000UX2G5 2GB PC2-8000 DDR2 offers great potential, with a 20% overclock possible using the default timings, or you can tighten the timings at 1000MHz.  Big Bruin did find little difference between that and the reference PC2-6400 they tested it against, which costs about 1/2 as much.  Don’t let that deter you from reading the full review, as these DIMMs will allow you more flexibility when OCing a CPU.
“The Super Talent T1000UX2G5 2GB PC2-8000 DDR2 Memory Kit performs great at its advertised speed of 1000MHz and fairly relaxed timings. Using more aggressive timings (4-4-4-12) allowed this memory to operated error-free up to 1075MHz, and changing the timings back to the default 5-5-5-15 allowed the memory to run stably at 1200MHz.”

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