Meant to add that I am not sure which chip to buy, probably the one that is cheapest and easiest to find.
I'd install both with wires so the only things that separate them on current info are the LED install check and the number of components.
The led fitting check is nifty but probably not needed for such a simple install. The extra components on the Cyclowiz give me things that can break but it's probably only got to work for less than a year before I upgrade.
Not much to choose between.
There is a presale thread in this board section for both chips (links in the guy's sig)
And CycloWiz comes in cheaper so I think most will head over there until other "reputable" resellers (since this guy seems awfully shady with a website done in about five minutes)