I want to get a CCTV system for the house ASAP

My needs are as follows:
1. 5-8 cameras outside IR cameras. (I don't want cameras inside)
2. Two of the cameras need to look up and down the street to monitor vagrants and suspicious cars.
3. The cameras must be in rugged housings (Cape Town weather gets to be quite nasty and of course this kinda stuff gets vandalized)
4. Really decent resolution.
5. Preferably IP so that I can get to it on the move.
6. DVR.
7. Dedicated screen (I use my PC for real work)
8. The setup needs to go on a VPN (I don't want the entire world on my cameras but I will give the security company access)
9. I am not looking for cheap $h1T - I want good reliable quality at a fair price.

I got some quotes but of course each supplier touts his own brand so its hard for me to make sense of the information. Some companies just wipe their butts and email me their monthly special.

I bet IANS will have some insight into what I should buy.