I'd use Galena with willamette for American Character and Northern Brewer with Fuggles for a more british character, depending on your preference.
(chinook is great, but it ain't "smooth" in my opinion)
I'd also add a 10 or 15 minute addition though. I find those hops don't come through enough with just one late addition (ever for lightly hopped ales). You could even skip the 30 minute addition and up the 60. I try to get my IBUs from the 60, and I manipulate the schedule from 20 minutes to 0 to get the flavour and aroma profile I want.
You'll have a nice pale ale whatever you choose.
In Process - Russian Imperial Stout, Nelson Sauvin Rye IPA, Mild No.3
In Kegs - Barley Wine, Apfelwein, Wild BlackBerry Wheat, Coffee Oatmeal Porter
Gone - so many :(