What GPU coolers for 6600GT SLI?

[btomasie]

I have two Giga-Byte 6600GT's in SLI on the DFI nF4-SLI board... what options do I have for replacement GPU coolers that will fit inbetween #1 and #2? Will the Zalman VF-700Cu's fit? If not, what will? I am getting into the low-80's on the CPU's under full-loads and clocked @ 585MHz/1.15GHz.

Thanks much!
Brian