The IRF3704S was used as it was the first D-PAK N-Fet package I found in the eagle library...
I haven't decided what MOSFETs to use yet, it depends on availability...

I will take a list of MOSFETs to the electronics market and see what I can find ...
Often it's hard to find low price mosfets with low RDSon in an SMD package here in Korea...

I will also prepare a list of Schottky diodes to find...
I tried to get some SK1010 / SK108 / V10P10 / V8P10 diodes last week but couldn't find any...

Thanks....
Michael