What heatsink compound have you guys been using as a redo on the singles 
Personally, I despise thermal grease. I plan to replace the grease in my mini rigs with phase change material (PCM).
Some info:
http://www.electronics-cooling.com/2002/05/understanding-phase-change-materials
Where I buy it:
http://www.opentip.com/Electronics/Startech-Heatsink-Thermal-Pads-Pack-p-1075383.html
Also on Newegg:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835230030
Experience has led me to love PCM for CPU and GPU cooling. Never tried on an FPGA, but I'm definitely going to.
Thanks,but I have grown VERY fond of Ceramique for CPU's & GPU's,for the last 6-8 years,but for these FPGA's I think it's a little too thick.
I'm mainly curious about what folks have actually used for the FPGA's.
So far MX-4,any others??
Please keep the suggestions coming,Thanks
