Ok. I'll throw in the mobo for free (because one part broken, but its still usable).
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|...... .......... <- side broken there and the two pins on the side are bent.
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That plug is for the front board of the case (the power button, headphone and usb ports). Its a special dell only thing I think. When you cross two of those pins, the mobo boots up. I can tell you exactly which pins later, or you can figure it out yourself easily. You can just then hook up the case power button (or whatever you're using) to those pins. A local buyer is also interested in this item, I will know if he wants it by tomorrow. If he doesn't come through, I'll PM you Alan (with the estimated shipping price and pics). I'll throw in the heat sink and fan also. A reason why I said it weighed a ton is because it's got part of the case tray on it. I don't want to remove it because I don't want to damage it, but if you have a good wrench, you can remove it easily. Plus a ton is exaggerating a bit...