I'd recommend you decouple the ADSL requirement, shunt that into a bridged modem. It's not a native router function and if you move to VDSL or DOCSIS then you'll need a separate modem anyhow.
Then you've much more choice as the market offers many capable routers ( like the one we're discussing ) that can terminate PPPoE.
+1 to that concept. I decoupled my equipment so now ADSL is run by a cheap but stable 1-port Zyxel modem and home routing is handled by time capsule. As for LinkSys, their adsl routers haven't been the best for me lately. Whenever I connected about 3 wireless clients to WAG320N, it started to freak out and show serious lags and sometimes it just hangs. No more same device ADSL+routing for me.
Then you've much more choice as the market offers many capable routers ( like the one we're discussing ) that can terminate PPPoE.