Suggested external cam?

[xefil]

Dear all,

I'm running my Zoneminder 1.34 on a Macmini4,1 with 8GB RAM and Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz.
Actually I've:
[*]2x Escam G02 (http://www.escam.cn/product/showproduct.php?id=58)
[*]2x VStarCam C16S (http://vstarcam.com/VStarcam-C16S-2MP-I ... a-205.html)

Until here, more or less, all ok.
I'm planning to add two more IP Cam. They need to have those requirements:

[*] Outdoor support / IP67 (rain, even if they are a little protected)
[*] Wifi optional
[*] One shuold be panoramic, with large angle
[*] low/middle price, I don't require something super, only for home

Do you have good experiences with some well spported models on ZoneMinder?

Thanks!

Simon