I am using this camera from Amcrest and have had good luck with it. It does require a wifi signal but for $89 I am super happy. It has HD zoom and pan, microphone and speaker, recording, the list goes on. The other thing I use is intellicast and their wind layer as a second point of reference.
Amcrest ProHD 1080P WiFi Wireless IP Security Camera - 1080P (1920TVL), IP2M-841 (White)