+1 for blue iris but it does take a little tech-knowledge or at least getting used to. Works great on my iphone too.
Another option - I've used these guys and found they have pretty honest sales guys and advice and decent post-sale tech support. They were a source for cameras and parts for me, but I know they recommend all-in solutions too that are likely better than big-box store stuff. I'm not sure how big their outfit is, but I'll PM you my contact there.
http://www.nellyssecurity.com/