obey
same reason as was given by kings. its not really with the 430 i want to change, i want to change the speakers. i actually wanted to get some mission speakers, but my budget would not allow it...
although i dont really regret getting my setup, since i dont really hear the difference that much. the yamaha is still considered here as the best for movies (last i checked the forums). as far as the speakers, many say that the wharfs are lacking, but they're really the bargain for entry level. i do find the bass rather bitin, but that's what i have a sub for.
my advice is to audition both or get higher models, like the 630 or the 5300, then get custom speakers from Nivrblkr and company. they have great reviews and i'm sure the price will be more appealing to your budget. the bonus is they can tweak the speakers to your liking while maximizing the potential of the reciever.