Although Halo 3 took the top spot in the UK charts for sales, according to Chart Track, GTA: San Andreas was still the fastest-selling game in UK history. We're sure the Master Chief is utterly devastated. GI.biz reports Xbox 360 sales doubled in the UK due to Halo's release. FIFA '08, Europe's pseudo-Madden, released over there as well last week and entered the charts at number two. Another interesting bit is that Forza Motorsport 2 saw strong sales from the Halo 3 release, jumping 22 places on the charts. Apparently Halo is helping sell Xbox 360s and games. Only a couple more weeks before the NPD gives the North American numbers for September.