You might also consider using an analog multiplexer.
Besides the industry standard 4066, Maxim/Dallas has a variety of analog switches and analog multiplexers.
Their analog switch/mux page: http://www.maxim-ic.com/products/switches/audio/
Keep in mind that if you're going to be making a PCB, you don't really have to stick with DIP packages, either - you can use surface mount packages, which will save on space. SMT/SMD can even be easier to use than thru-hole stuff; it takes a while to get used to though. One big advantage is that you don't have to drill a bunch of holes. Some of the SMT packages are pretty difficult for hobbyists to deal with though; like those that don't have leads.
Besides the industry standard 4066, Maxim/Dallas has a variety of analog switches and analog multiplexers.
Their analog switch/mux page: http://www.maxim-ic.com/products/switches/audio/
Keep in mind that if you're going to be making a PCB, you don't really have to stick with DIP packages, either - you can use surface mount packages, which will save on space. SMT/SMD can even be easier to use than thru-hole stuff; it takes a while to get used to though. One big advantage is that you don't have to drill a bunch of holes. Some of the SMT packages are pretty difficult for hobbyists to deal with though; like those that don't have leads.