3 Wood Hill
This branch is located in the town centre, right by the War Memorial and just round the corner from the Museum and Church. Sixfield Leisure Park is a couple of miles away which is where the nearest cinema and bowling alley are. Northampton train station is also only half a mile walk away from the town centre and Nando's too.
As for parking, St Johns Street multi-storey (24hrs) is only a 5 minute walk away. It's cheap during the day/week giving the first 2 hours are free and then £1.20 for the 3rd hour and all day parking at only £7. An evening rate from 5pm-11:59pm is only £1 - and there is free parking all day on Sunday/Bank Holidays! This car park is also right by a large Morrisons/Dunnes car park so you could probably sneak a couple hours free if need be. There is also parking right outside but a maximum of one hour stay.