Scythe Setsugen. Better than stock cooling but no match for 3/4 slot designs. The Scythe uses a heatsink coupled with a then 120mm fan.
A SPCR review
http://www.silentpcreview.com/scythe-setsugen
3 slot alternative
http://www.silentpcreview.com/Arctic_Cooling_Accelero_Xtreme_Plus
4 slot alternative
http://www.silentpcreview.com/Thermalright_Shaman_GPU_Cooler
If you have a PCI-E slot 8x/16x further away you might be able to install at least a larger cooler to the top warmer card and have the two slot Setsugen to the bottom card, if you have sufficient case room.
I've got a Setsugen II and it takes up no more space than a standard double slot card. I've got mine with a soundcard directly below it with no issues. It cools hugely better than the stock Palit cooler that was on before, but then so does a mouse farting.

PCI-E flexible slot riser perhaps to give yourself a bit more clearance and fix the card further down in your case to an empty expansion slot, assuming of course you haven't got a silly mATX case with no further expansion slots.
Aftermarket coolers will vent into your case too so you'll need to consider the extra heat in your case.

Ghetto PCI riser mod...
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PCI express riser, something like this http://cgi.ebay.co.uk/Flexible-PCI-E-PCI-Express-16x-Riser-Card-Extender-/350345499336
OcUK don't supply this sort of thing so shouldn't be against rules to point towards it.
Yeah I saw your 'case' and that's what prompted me to warn you about the heat from two 200w 5870 cards being dumped into that tiny space. Warm it will become, oh yes.


I suppose you could fit some fans exernally to the case as I doubt any would fit inside.
Oh one thing you need to consider is the height of the setsugen over the stock cooler.
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Here you can see how much it overhangs the HD4890 PCB which will be similar sized to the 5870 in height, I'd imagine.

I suppose you could fit some fans exernally to the case as I doubt any would fit inside.
Oh one thing you need to consider is the height of the setsugen over the stock cooler.
![]()
Here you can see how much it overhangs the HD4890 PCB which will be similar sized to the 5870 in height, I'd imagine.
I don't think you need to worry about scalding yourself on them, the fan is supposed to allow the heat to be moved away from the metal surface into the surrounding air. Active coolers don't tend to get nearly as hot as their passive brethren.
Your case already looks totally ghetto, especially with that external PSU. It might look a bit strange but maybe you can build an enclosure around the graphics card area. You could even ghetto a separate compartment for them if you use risers.
We've already discussed what a riser is. Riser = PCI express riser.