I bought a wireless IP camera ($75 on ebay, Foscam) this year and it worked awesome! It has to be able to receive a wireless internet connection, but my house is close enough to my barn that it was able connect to the wireless. It was AWESOME! You can access it from anywhere, from any internet browser. I used it so I could keep an eye on things while I was at work.
Tracy Anderson Cornerstone Farm - Breeders of quality sport prospects for the amateur and professional www.cornerstone-farm.ca
We're now on facebook! Follow us here
We got ours from RosTech (http://www.rostech.com/). Started with one camera 3 years ago and added a second this year. Reception is pretty good but we have a large metal shed and metal corn crib between house and barn so it could be better. Plan on adding an antenna on the house next year to draw signal in better.
Not sure how prices go for other systems but these seemed reasonable...I don't remember what the original system cost but the second was $400ish.
Kudos to them too- I decided my mares were looking too close for comfort on a Sun, ordered second camera Mon and it was here by Weds with no extra shipping. Easy installation and my hubby had it up and running by Weds PM. Came just in time- mares foaled Thurs PM and Fri PM.
Mine as well... very happy with my camera (my room where I connect it to my computer to remote in from work and watch any mares getting ready to birth is placed is a death zone for cell phones and wireless signals, but if placed a certain way I can see the picture very strongly). Next year planning on adding addition cameras.