Hi all...My graphics card 8600gt is now showing signs of ageing (BTW, colors on the monitor samsung 2033sw lcd, getting sort of smudged especially where there is proper contrast is a gfx card issue right???) ...Hence I need ur help to buy a new GFX Card...My config consists of - AMD Phenom II 920...4gb ddr2 ram...Gigabyte GA-MA78GM...VIP Pure 500W SMPS....Samsung LCD 2033SW...Now I am a little tight on budget which is not more than 7-8k..My primary usage is 3d modelling & rendering & gaming...Now the main thing is that my PC doesnt have any AC environment, so "HEAT" is a major issue which the GFX card shud deal with properly...Thats all...Pls advise at ur earliest convenience...Thanks