i'm on 16384-1945 x64 too (upgraded from 7232) and everything seems groovy now that sven told me how to get daemon tools to work.
i have no problem with mouse pointer browsing digg - although i've only used chrome and ie8 (never really got on with foxy) - i've got logitech g3 rodent which works just great with no extra drivers (even extra buttons work fine).

seems strange that only that website gives your mouse the heebie-geebies
haven't really paid much attention to ram usage, but like you john, i've got 4 gigs of the stuff, so i'm not too concerned about a little bit more being used - maybe the extra is being put to good use prefetching or something? :huh:
i had some punkbuster problems after the upgrade, but a quick manual service install allowed me to get a few more points in bf2 without getting kicked every five minutes!
in fact, i think the upgrade played around with my services quite a bit - i had to go back and manually disable a few of them after the upgrade - just can't stop tweaking!
all in all, i'm glad i upgraded - just coz i don't notice any obvious improvements, it doesn't mean that there aren't any less obvious ones! i presume m$ have been doing something to the os between builds 7232 and 7600?
