I'm seriously considering upgrading to the Hybrid version of the 980 Ti, but I have no experience with mounting the radiator for such a card. I'm actually ordering a new case this week, so if I need to purchase a specific kind, please let me know. In this case, I don't know what I don't know. My current Ti is the standard Nvidia reference cooler.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814487144&cm_re=980_ti_hybrid-_-14-487-144-_-Product
http://www.newegg.com/Product/Product.aspx?Item=N82E16814487144&cm_re=980_ti_hybrid-_-14-487-144-_-Product