Kona Dew Drop also has discs and drop bars, very cheap too at the moment from Wiggle.
...but only in stupidly small sizes, which is probably good otherwise I'd be very tempted!
I'm rather taken by the possibilities of hub gears, discs and a dynamo hub - a modded Alfine hubbed MTB would be a fantastic commuter.
That's exactly my thinking, and whilst I can see where Clarion is coming as regards the hub, I think the Alfine may be an acceptable compromise as regards keeping the cost down. My commuters end up getting rather shagged through heavy use in foul weather, spending £800+ on the hub alone is probably a bit excessive! (Actually probably £1000+ for a disc compatible one.
)
The Carrera Subway 8 has straight handlebars, and I think I'd prefer to go back to drops for my next commuter. I need to find someone selling a plausibly acceptable steel frame. Singular are a possibility, although they're mostly out of stock at the moment.