I've played around with web cams and also have used my digital video camera. Software accepted it for the PC. You may want to try the digital video camera as a hook-up. I thought the quality was better.
Now I use the iMac24 with my brother and it's like being there. So just bought one for Christmas so when we get back look forward to seeing the grandkids.
Skype is nice. It is good between PC and MAC, as the software is compatible.
I need to try and find that link for the twin doll. Youngest 4 year old GD would like that.
Thanks.
Edited: Found it I think.
My Twin