> Now, we need to purchase a good U320 RAID card now. Any suggestions > for those which run well under Linux?
Not sure if it works with linux, but under FreeBSD 5, the LSI MegaRAID cards are well supported. You should be able to pick up a 320-2X with 128Mb battery backed cache for about $1k. Wicked fast... I'm suprized you didn't go for the 15k RPM drives for a small extra cost.