>. sorry; i'm a newbie; hope this question hasn't been asked-to-death...
It has, so your best bet is to search this forum for the answer. Try searching on 'synched' - that will get you started.
...and welcome to the forums. Pretty much most of what you'll ever want to ask has indeed already been covered so *please* do search first before posting. Even if it means wading through a zillion posts. That way you get to learn even more
Not mentioning Sonos by name (ahem), that's the best system I believe for multi-room syncing. At a price... The soundbridge doesn't do it natively, but as Bregent writes, do a search as there are workarounds.
G5, OS X 10.5.8, 3 x M1000, iTunes 10.4, slimserver 6.2.1/alienbbc (now redundant), firefly svn 1586, uNSLUng 6.8