Boot Markets are great as well
Picked up
Snes with Starwing, Fifa, Mario for about 9 quid, sold it for £30 on ebay!
Recently got a Saturn with 2 joypads, sega rally, virtual fighter, fighting vipers, tombraider for £15
oh, and on sunday i picked up 45 (yes, 45!) boxed amiga games for £3...