I am using a noname brand Firewire hub I bought for $25. It's powered, and it seems to work fine with my drives. However, I also had no problems daisychaining my 3 Firewire drives and 1 compact flash reader on my iBook. (I did have some problems intermittently on my PC, but then again I had the same problem daisychaining on the PC, and now everything seems to work fine 95% of the time.)