Dillon Nichols made a DIY PID controlled hotplate:
I got lucky enough to get a free PCB from Dangerous Prototypes a little over a month ago. I finally finished assembling it last night. It was my first time soldering SMD components, but it was worth it. I also got to use my homemade hotplate for the first time with no problems. I used this solder paste. I really only used the hotplate for the TQFP (Thin Quad Flat Pack) PIC chip and it worked out very nicely. The rest of the components I hand soldered with a bunch of time, patience, and flux.