I'm using the Toshiba IK-WB11A Wireless Network Camera. 

I'm not all that happy with it, as it's out of focus on the right side.  Other users have this problem as well.  It's been replaced three times, as Toshiba says that this is a defect, but they just send a new camera with the same flaw.  Also, the automatic ftp doesn't work.  Even with these defects, it's an amazing camera.  It's been outside in wind, rain, & snow and is still happily working away.  Incredible in low light too.

I wrote an application to capture and save .JPGs:

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The above software is here

This is a C#.NET app, so you will net the .Net Framework (huge) if you don't already have it.