If Chaos or Order captures the enemy city, AFAIK they get access to several raid dungeons (25-man raids?) where bosses drop some of the best items in the game. This state (where players of the losing side cannot access their main town) lasts a few hours apparently.
I got this info from the game manual (I was given a copy) and a MMO magazine ... got the game at home, but a) the technician was delayed so I won't be online at home until mid january, b) I think my PC is too slow to run it anyway.
But then, I played WoW for over two years and bitterly hated PvP ... I think I'm the only warlock on a PVP server with level 70, mid-range equipment from raiding, and a ridiculous total of ~150 lifetime kills including the occasional hordie killed by party members.
Which makes the very much PvP-oriented WAR seem like not quite the ideal game for me.
(Man, now I get all nostalgic. Several lv70 characters (warlock, warrior, hunter, shadow priest), too much time spent going farming with bank twinks (in their 50s); the last time I checked /played and added it all up I'd spent well over 180 days realtime in WoW.
(Two years of: Get up, log in, scan AH while making coffee, 1/2 hour of playing before going to crap job, get home as early as possible, scan AH while grabbing munchies, play until 4 am, repeat, don't rinse.)
One tip as a PS: If you start bank twinks and go like "Hey, I'll do a couple of quests with this little guy here, maybe they're fun to play" .... doublecheck the name. My lv70 hunter has a name like "itemdeposit" (only german) which seems to say basically "Dear hordie, I seem to be a bot and/or idiot, please kill me immediately." If you choose to play twinks with really dumb names, like I do, do it on a PvE server :-)