Yes the delta is loud and I would not plug it into the mobo's fan header, connect it to a 4 pin off the P/S. The YS tech or the sunon will work but if you decide to get into peltier cooling the delta will really help the heatsink with all the heat.
The alpha is a full step above the orb, worth it
[This message has been edited by Maxout (edited 07-24-2000).]