Thanks for the responses, much appreciated.
Cost is the main concern on this one; the job wasn't properly bid and I'm dealing with a contractor sweating bullets at the thought this is going to come out of his own pocket.
HAD it been wired properly, I could do an OnQ system complete with keypads, etc but no iPods or source gear (not in our scope) for around $2800.
By the math I'm looking at, Sonos would come out to over $6050 not including docks and whatever bridge(s) etc. it needs.
Due to the wiring challenges, it is starting to look like wireless is the only way to go for the control aspect.
Now I'm looking at an Airport Express solution. Cost is looking like $1850 not including docks or the computer (not in our scope to supply, but no big deal there anyway, computers are cheap.)
Having said that, I've never played with an Airport Express with a Remote app, hopefully it's not total junk