I've looked from Southampton and can't find any decent prices so it looks like i'll be driving! Try GNER.co.uk
Take the short train journey from Birmingham New Street (around 10-15 minutes) to either Aston or Witton station. Witton station is nearer to the away end and is only a few minutes walk from the ground. Turn left out of the station exit and continue down to a roundabout. Turn left at the roundabout into Witton Lane and the entrance to the away section is down this road on the first corner of the ground that you reach. Aston station is a ten minute walk away from the ground. Extra trains are laid on to the ground on matchdays. this is what it says on football ground guide hope it helps
I can barely spend a day in the midlands let alone two haha! god wolves, brum, stoke all wasteland occupied by a group almost as bad as the well known northerners