I just read a neat description of the Garmin 530 in operation. Although it’s the 530 and not the 430, it highlights many of the great features, functions and benefits of both boxes (they’re very similar), and provides an interesting insight into some of the differences. It’s done as a series of screen shots, with accompanying descriptions of various phases of a flight from SMX to LAX and return - complete with selection of Departure Procedure, Arrival, Hold etc.
You can find this e_article by Mike Busch (of AVweb, not Cirrus) at http://www.avweb.com/articles/gns530/Garmin’s GNS 530. (In case I didn’t learn the embedded URL trick from Joe Mazza properly, here it is again in plain text: http://www.avweb.com/articles/gns530/)
It really makes me hanker after that Sandel EHSI, too…