Do you need a system that will store music on an internal hard drive as the WACS does?
I used to work for Philips consumer products. We all loved the idea of the WACS when launched about 2 yrs ago but I thought the sound quality was poor at the time. Too low a bit rate on ripped CDs and the speakers left something to be desired. OK by £150 micro-system standards but that's all.
Things may have improved for the WACS since, but so has the market.
When you compare WACS to a thoroughly thought out product like Sonos you start to see how it's done right. Admittedly Sonos is a different and it has no internal storage, but it just works, and it's beautiful to use. Spend the extra, you won't regret it.
Regards