DesignTechnica reviews the Apple AirPort Express - Compare Prices (starts at $124.00).

Quote:
" The AirPort Express certainly has a lot to offer in a small package, but the device’s practicality may be relative only to a small subset of users. Those that specifically want to use iTunes for their music streaming and don’t mind having to use their laptop will find the AirPort Express useful. Those that don’t have a wireless network and only want wireless clients (10 or less) may also be interested in the product. The device may be perfect for those that live in a small apartment or dorm room and don’t want a wired network and don’t mind having their stereo in the same room as their printer. But if you plan on using all of the AirPort Express’ features, or already have a wireless network, you may want to reconsider. "
Read the full review.