Sticking with GW paints, the new Foundation Red is OK for red, not the best I\'ve seen, but it\'s good for beginners or speedpainters.
For my red, I generally start with Dark Flesh, as it retains the slightly earthy quality of Scorched Brown, yet has a red element to it. Add Scab Red to this until the mix is pure Scab Red. Next, add in Blood Red and highlight until the mix is pure Blood Red, as before. Finally, mix a little Blazing Orange with the Blood Red, and there you go!
theye