Uncle Acky's is fast and almost holds a full quart, a pro tool. The little hand pump's that fit on the bottles (and check the fit there are different sizes) are slower, cheaper and work for a DIY'er. Comes down to what you want or can afford. I have both and prefer the pro tool.
Here's the one I'd buy if I needed one.
http://www.lube-store.com/products?partno=12903
This handy gun is useful for filling or extracting fluids from one container to another. Two-way action is possible due to valves that open or close during the pumping process. The gun comes with two 44" suction hoses made from clear polypropylene, and has a steel body with 2 steel end caps and a T-handle.