If it was just printers I wouldn't think twice about just using some APs in bridged mode. For PCs I would make sure their (the users) expectations are set correctly and make sure you don't have a some database application that is real sensitive to latency running on the link. As cheap as it is to try, I would try it for one set up and then do the rest if it meets their expectations.
Depending on the units, you can get really good latency on wireless links. but you need good ones. Some people argue that it beats wired. it doesn't, but it's good enough that people start to imagine that it does.