If you want a membrane style keyboard it's hard to beat most of logitech's offerings.
If you want a mechanical switch keyboard you might want to try the unicomp customizer or das keyboard ultimate.
Personally I dislike all the frills and go for reliablility. My antiquated IBM model M does it for me. It doesnt even have a windows key
As for ghosting... wouldnt that term be more relevant to an LCD? Unless i'm wrong keyboards are usually described as lagging or having a delay.. and why would a keyboard have a sound card... that part confused me.