Hmm... For cheap, the 820 can't be beat (even by the AMD). But I would buy the 830 for the extra speed. Not so much today (not too much difference in performance, really), but in a couple years that 200mhz may make the difference between adequate and dog slow. (sounds strange, but that is the impression I get with my old 850mhz AMD compared to my old 1000mhz AMD - the 850 is just enough slower)
Mike.