Hi ya mate, Harrow isn't too bad.........look for the Harrow leisure centre and it's in the car park area. As for Playstation2? well my nephew went there on his skate board and said it was so clicky! he was there 10 minutes then got asked/told that it was only for local kids and if he and his mates (who had bused it all the way from Clacton-on-sea) didn't P*ss off right away they wouldn't be able to walk off the park!
It's in a right dump of a place as well........right under the A40 flyover
If I were you i'd get over to Rom as most over there seem really friendly