Havn't seen much love for the Homebrewer thread soooo
Bought all the stuff for a Chocolate Porter.  It's a recipe not a kit as I am getting board with off the shelf kits 

 soooo bought all the stuff. 
 After purchasing I noticed the biggest expense in the brew was the DME and the LME.  
Any suggestions on the best place (ie cheapest) place for such things?