I have a Galax GT 980 ti HOF video card that was sagging in my system. Saw this: (http://www.amazon.com/Puget-Systems-Universal-Acrylic-Brace/dp/B019ZZQVK8) on Barnacules Nerdgasm and ordered one.
Works great. Gives the card good support and the price isn't that bad.
Yeah I checked it out before, but my SLI configuration only has a 1 slot gap and that requires 2 of them.
Looking at it, you could still use it with a single slot gap, because it screws in over the bracket.
Looks nicer than the telescopic brace I have seen, I think from Zalman.
Stuff like this is one of the reasons why I've always felt Silverstone had the right idea making a 90 Degree Orientation motherboard layout on their high end cases. cause the case will support the weight for heavy graphics cards. I have trouble moving to a normal case cause of it, it's that good.