I picked up a couple of tickets for this one earlier today, I know you can pay on the day but was visiting a relative who lives just down the road from The Hawthorns, so thought I'd get tickets sorted for Forest (and Porto).
Very much looking forward to this, as Nottingham is a good location for an away day, not too far and regular trains, and a few decent pubs on the route or near the ground.
Looking at the 9:49 or 10:19 from New St.
I would imagine there will be a decent turnout from Albion supporters, with the match being played on a weekend.