i got an izumi gold chain today. pretty snazzy looking. i haven't had a chance to take the bike for a spin yet, but i'm sure there really won't be much difference smoothness-wise.
the one thing i have noticed about it though, is that it's pretty much exactly like the KMC 410H chain, except gold plated. still a good chain, but you can get the same exact thing in silver for about 10 bucks less.
i also got some MKS njs-stamped unique-custom pedals. they're pretty smooth as well...the actually feel smoother than my time ATAC clipless pedals that i had on the bike before.
i snagged both items from momovelo today for $44, and i'm going back tomorrow for the second day of their two day sale...apparently there's gonna be more stuff out than there was today...i think i'll get a pink cycling cap...hot pink.