Hello all I am looking to ditch my dropcam setup and utilize my existing Synology DS716 with cameras powered through poe. I would like to use 4 outdoor bullet style cameras that capture audio. I also plan on using 4 indoor cameras that also capture audio. I will mostly view the cameras through Synology's DSCam app on iphone and ipad. I would like to not spend more than $150 a camera and would like great resolution. What models do you suggest for outdoor and indoor cameras?