I think OCZ has one around CAS 2.5 that's reasonable. Most 1gb sticks are not low latency sticks. The A64 can't make good use of super LL anyway.
Abit IS7 - 3.0C @ 3.6ghz - Mushkin PC4000 (2 X 512) - Sapphire 9800Pro - TT 420 watt Pure Power
Samsung 120gb ATA-100 - Maxtor 40gb ATA - 100
Sony DRU-510A - Yellowtail Merlot