Geri B, The best price I've found for Madeira thread and other embroidery supplies is
http://www.allstitch.net/ I buy almost all of my embroidery supplies from them.
Their thread is about half the price of the small spools dealers sell and it's almost 3 times as much thread on the mini cones. I do suggest getting a thread stand to put behind your machine as these Madeira cones will feed better than on the machine. Shipping can be high from AllStitch so my BFF and I go in together to make the order big enough to get free shipping.
Yes please do finish your project and post pics!
Cari