Best Airplay Device

Thanks very much. Do you know of any reviews of the Onkyo or anyone who has heard it?

How about this?

http://www.intl.onkyo.com/products/accessories/ri-dock/ds-a5/index.html

Or if your budget extends further

http://us.marantz.com/us/Products/Pages/ProductDetails.aspx?CatId=ReferenceSeries&SubCatId=0&ProductId=NA11S1

(this has a built in DAC as well but also analog outputs)

Apple Extreme or Apple Time Machine which includes the Extreme wireless in conjunction with he Logitech Touch into a Metrum Acoustic DAC.

I began with the Express. Regardless of what cable you use with the Express it is still a bandwidth choke point.

Define "better". If you're talking about jitter than your DAC has asynchronous sample rate converter meaning suppresses jitter. If it is still not enough (jitter shows as a noise - lack of clarity) than perhaps additional reclocker would be better. I use AE but never investigated other devices that can play more than 16 bits since all my music is 16/44.1

AppleTV?