Video cards and Heat

Yesterday I mentioned that heat was causing problems for many users of PCs. One of the items in a PC which I would like to address is the videocard. High end gamers (for example) sometimes have two top of the line videocards in an SLI configuration. Although a few of these enthusiasts use water cooling many do not. There needs to be far more research into alternate cooling solutions for videocards which lower heat and stifle noise.