You can recommend a better one, but only if it's available to me.
Unfortunately, The Ultima 90 is also not available to me (Damn Australia, you're hot enough already, LET ME GET COOL)
But, despite its 2 heatpipes, i think i'll actually go for the 8700, as it also has the advantage too cool everything around it.
I'm gonna buy some more case fans (120mm-140mm) to help supplement the airflow as well.
One of my side fans is directly above the CPU, so i can feed fresh air right into the 8700's downdraft architecture, then extract hot air right out the back!