After much consideration, research and recommendations, I decided to invest in a professional soap cutter. I settled on the The Tank from http://www.forcraftssake.com/. It was not cheap and it took over a month to receive it...but it was well worth the wait!
Here it is - ready and waiting to take on my 4lb. log of day old soap!
The wires cut perfect 1 inch bars...not quite as easy as it looks though. I was surprised that you really do need to put a little muscle into it...especially with my gelled soaps which tend to harden up much faster than the honey & goat's milk soaps.
I'm not sure how much time this thing is saving me, but let's just say that my laundry is already done for the day! Amazing!
So would I recommend The Tank?? Definitely! But be prepared to wait a while...the company cannot keep these in stock and has to make them to order. Now I have no idea how I ever lived without this cutter!