I've found the ATA 133 controller card from Promise (Ultra133 TX2) that Maxtor is co-branding to be very stable with W2k. I got mine bundled free with an 80 GB 7200 Maxtor (L080J4) and it's worked very well with no hiccups or problems at all. They're about $50 stand-alone at Staples, could be cheaper elsewhere. If you get one just be sure to install its driver before plugging it in. I run one drive on each channel. I have three HD's and two CD's as well. Happy wumpus hunting!

-Zeke