Well to start with you will need a video capture card for your computer a Belkin, or what ever works I could not put the blekin in mine so I have a Haumpauge, the camera should be at least 420 resolution or TV lines for the best picture output, there are good wireless and there are bad, I bought some less than 420 TV lines and are not happy with them, so my next order will be the better ones that I have in my older cams, I get mine from CCTV Imports they have a web site.
Another thing to concider is a wireless will have interferance form the microwave and or some wireless phones, but if your barn is far away from the house sometimes you have no couice.
As far as providers, I had Wefoal for a few years, they were not a personalble type company, Ric now not the owner was for the big farms and who could give him the most money, he let us little farms go by the wayside, Tom and Michele I can't say anything about as I dropped Wefoal a year after they took it over because I never got notified they were the new owners until 3 days before the bill was due. I did not think that was very professional.
I have Mare Stare now and am very Happy with Heather.
Also you do not have to pay for the whole year, if you only want the cams on during foaling sason that is ok with her, she will keep your information until the next years hookup.
And there are hundreds of people to watch, Marestare people don't care if it's wefoal they watch or Marestare and you wil get a call if anything is going on no matter who you go with.
Good Luck Let us know when you get hooked up so we can watch.
Jan