When the power boards arrived yesterday, I began a search for a proprietary method of connecting LEDs to the Arduino as I have a use for the MAX7219 chips I recently bought. After a bit I discovered the ideal solution from the same supplier. Not only is there a board, there is a complete dot matrix display in component form. They have single units to bid on and packs of four for a fixed price. This is the fixed price option here and there are auctions currently for just one.
