Wow I'm surprised you are using two 120gb drives, usually people use smaller drives for that kind of Raid set up. Nothing wrong at all with using those drives, I'm just kind of surprised. As for switching OS's have you thought about using Win2000? I switched to Win2000 when I built my system and I love it. Best of all Win2000 supports S-ATA, which is going to make Win98 obsolete.