I just did my case this last weekend with flexo pet too. 
I bought a pin extractor from radio shack 
Link to help remove the pins, and that saved me hours.  Warning: this is hard to find at a Radio Shack.  I went to four stores before finding one.  The trick is that it is stored in their file cabinent with the resistors.  Took a smart employee to finally find it.
I also got the heat shrink tubing from SVC when I got the flexo pet 
Heat Shrink Tubing Link.  This is a definite must.  The only problem that I had is that I didn't order enough flexo-pet for my project.  I am waiting on another order to come in before I can finish it.
This was my second order already because I wasn't sure what size to order.  I used 1/8" for my case fan wires (and cpu fan) and 1/4" for my power connectors.  If you want the color of the wires to be hidden then you need to stick with a dark color such as black.