XtremeComputing posted a review on the Crucial Ballistix DDR2 PC2 8000 (1000 MHz) 2 gig kit

Obviously there are better 2 gig kits on the market with tighter timings, but in this price range the memory is spot on with the crucial being nearly a whole 1/3 cheaper than the lower latency modules. That for me despite the lower timings of the pricier kits makes this kit ideal for those that want speed but are on a tighter budget.

Crucial Ballistix DDR2 PC2 8000 (1000Mhz) 2 gig kit Review