One other thing - Vaitses doesn't seem to be a huge fan of epoxy . . . He loves vinylester and polyester resins.  Based on my own personal experience using all three, I've found epoxy to be the most user friendly resin. 
System III (2:1) epoxy the easiest to work with. 
Followed by US Composites 635 thin resin.  
www.uscomposites.com
I don't really like west systems b/c it's very expensive and cures quickly even with the slow hardener.