Getting to the ground
The ground is a 15 to 20 minute walk from the station, although that's assuming you enter/leave the station via the "back door". Via the main entrance it's an additional 6 or 7 minutes. So make sure you go the short way back if you're on the 1944 train!
If you're driving down then you can park at the velodrome, next to the ground. It'll cost you 8 though (2016/17), or 6 if there are four or more people in the car, and no doubt it'll take you for ever to get out after the game. Another option is the Cattle Market (6 quid), which has the advantage of it's own pub, the Meadows Inn. There is very little street parking anywhere near the ground, but if you get there early enough there are some options. A couple are shown on the pub map,
The pubs around the station are always a good bet. On our last few visits we've been in the Brunswick. It's got a vast range of hand-pulled beers, including several brewed on the premises, and a beer garden. The nearby Alexandra, which also has an extensive selection of beers (click here to see what they've currently got on), gets equally good write-ups. Both of these will get very busy. If you want somewhere quieter there are a number of other pubs around the station, of which the Station Inn could be your best bet. Avoid the Waterfall though. If walking from here to the ground you can save time by cutting through the station, although not if you don't have a train ticket! There's a Harvester near to the ground if you're not bothered about getting a decent pint. All the pubs mentioned (and a couple of others) are shown on the pub map below. Fans of Wetherspoons will be disappointed to hear that their nearest pub is, unusually, miles from the station (well three quarters of a mile to be precise), and even further from the ground.
Pub map
Ground guide