Some have used a havy duty right angle cordless drill as a winch driver with success. Here is one forum conversation about it on sailboatowners.com.

http://forums.sbo.sailboatowners.com/printthread.php?t=116260

This might be a less expensive yet functional option instead of the electric halyard winch.

I'm with Steve about using two windlasses to manage two anchor rodes. Had that setup on my Allied Princess and it worked well.