Getting to the ground
Swansea moved from the decrepit Vetch Field to a new ground a few seasons back. Inevitably it's another identikit ground and in the middle of nowhere, in this case around a mile and a half from the station and two miles from the city centre. At least it's on the right side of town if you're driving down. That's not much consolation though because you can't park at the ground and there's very limited parking in the surrounding streets. The idea is that away fans use the Park & Ride at Swansea Vale, which is signposted after you leave the M4. It's six quid per car for parking and bus transfer. You're better off though, especially if you get there reasonably early, going for what street parking is available in the vicinity of the ground. Head for the area to the west of the ground. It's mostly residents' permits, but not all. After the game the B4489 will take you back to the M4, avoiding most of the match traffic.
From the station the alternatives to catching a taxi to the ground are walking (25-30 minutes), or the bus (every 10 minutes on Saturdays, routes 4, 4a, 120, 122, 125, 132 from the station).
The pubs around the ground were at one time instructed by the police not to let away fans in. But it seems that either this advice has been either rescinded, or it's ignored, because away fans are getting into quite a few places. Those most likely to attract away fans are Frankie and Benny's and the Harvester, both right next to the ground. There are a few others reasonably close by, although I've no idea what any of them are like, although I've read that the Railway should be avoided, whereas teh Plough & Harrow tends to get a mix of home and away fans. The Alma Inn and the Globe are a bit out of the way and so might not get too busy. You're definitely out of luck if you're a beer connoisseur because you can't get a pint of hand-pulled within a mile of the ground!

For anyone going by train or staying in a city centre hotel, there are obviously plenty of pubs in the centre, with the biggest concentration being on Wind Street. The only one that gets consistently good write ups though is No Sign Bar. As it happens this is right next door to Wetherspoons' Bank Statement. Your best bet though is the Queens Hotel, down toward the waterfront ("An old-fashioned corner pub with polished mahogany and brass bar, old tiles and a range of cask-conditioned beers on tap, including Theakston's Old Peculier" - Lonely Planet). See the pub map below for locations of all the mentioned pubs, plus a few others.
Pub map
Football Ground Guide