Sparkfun

US$3.43
+
US$5.53
+
US$7.81
+
WRL-12847 XBee Shield
WRL-12847
US$34.93
+
US$83.93
+
US$8.78
+
US$12.54
+
PRT-12769 SD/MMC Socket
PRT-12769
US$4.19
+
US$15.06
+
WRL-11812 XBee Explorer USB
WRL-11812
US$39.05
+
US$5.25
+