video over WiFi?

[mofo]

I would like to try sending video over a WiFi network, and i wonder if the technology (gear) is available for this type of application. What i need is to connect a small video camera to a wireless video sender, which could broadcast the signal over an existing local WiFi network. So i'm guessing what i need is just a WiFi video transmitter, with a PC and WiFi router to receive this signal and some software to display/record the video.
Is this sort of equipment readily available? and affordable? Does anyone have experience doing this or could recommend some equipment to do the job? Thanks for your help.

[sgtspector]

How about a wireless camera that will connect to your router? Here's a bunch of them. (http://www.newegg.com/Product/ProductList.asp?DEPA=0&type=&Description=wireless+camera&Submit=ENE&Ntk=all&N=0&minPrice=&maxPrice=&Go.x=0&Go.y=0)

[mofo]

Because those IP cams have crappy specs and their size is too big for my needs. I would like to use a good quality bullet camera and send the video at 30 fps.