here are my favorites - i tested myself and i am happy :
1 EUR
mikro SDHC breakout
http://www.ebay.de/itm/171168414356?clk ... rmvSB=true
my tip with combinied ESP8266
the onboard AMP1117 3.3 can 1 A and can used for esp8266 too.
the vcc for the breakboard is normaly 5 v but you can give more ( AMP1117 )
alternate, but not tested: ( 0.66 - 0.78 USD )
http://www.aliexpress.com/item/Micro-SD ... 59962.html
the same mikro SDHC socket are here: ( have tested byself )
http://www.ebay.de/itm/171738462758?clk ... rmvSB=true
if you need the socket as eagle lib, post request

btw:
WInbond 32Mbit ( have tested by self )
http://www.ebay.de/itm/171168414356?clk ... rmvSB=true
and here is a demo flowchart
http://www.matrixtsl.com/mmforums/viewt ... 58&t=16712
have phun
best wishes
rudi
