The bottleneck CPU when un-bzipping the data (.39gb compressed, 1.4gb uncompressed), then disk speed. systat -vmstat indicates only 10mb/sec on my RAID, which feels low, but I also really don't want to fight with it right now. It took under a half hour to run, and now it's building the index (/*!40000 ALTER TABLE cur ENABLE KEYS */).
It's weird struggling with a gigabyte of data now; it feels like such a small amount of data compared to the stuff we deal with at work.