I have SK7 w/ TMD 70mm fan (the same one as aeroflow's antec), and it runs my athlon XP1800+@1618Mhz idle on 33C and full load 36C (ambient temp 23C, but i use AS1, not yet AS3)...
according to overclocker's heatsink ranking, the C/W difference between aeroflow w/ TMD fan and SLK700 w/ the same fan is only 0.01 C/W .. there's no telling about SK7 tho .. but SK7 shouldn't differ that much, so I have to say .. go for it

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EDIT: I just realized that u're using SVC golden gate 40 .. i used that HSF before upgraded to SK7 .. that beast worked fine, but the YS-Tech fan was unbelievably loud .. kept me up couple of times in the middle of my sleep ..
