I took a look at those and they seem quite amateur...I'm looking for something more polished/from a more professional company. Of course willing to pay for the software.
Do you mean Xgestures or BTT?
You can also take a look at Magic Prefs, but I don't know of any professional company delving into gestures. Xgestures is a paid product though and I used it for quite some time, but BTT is quite good too, even if I don't have to pay for it.
And what do you mean by "polished"? BTT is still alpha and beta and for what it is, it offers a load of features that work quite good.