I do not play WoW. Although I really respect Blizz b/c I'm a really big fan of Starcraft and Diablo 2, I never really got into Warcraft. WoW was a change but the monthly fee really was annoying. Also I don't have time anymore. Other than that, I heard that it got really good reviews but I wish Blizz will hurry up with Starcraft ghost.. its been like forever..
i would suspect that a broadband (preferably cable since it is faster) and a decent comp with good graphics and sound card will cut down the lag.