Extra cooling is only needed if u r into major occing or ur amb temp is quite high. Btw, Blade, a fan will go a long way in extending the life of ur card even if its working fine without one. And if u're occing majorly, u might try heatsinks for the ram on ur card. Check out
http://www.tech-arena.com/articles.p...showarticle=11.
See, lower operating temps=longer life+more stability.