hi dude, i have the same issue, need voip for a job where a guy needs to watch and communicate to a second site, i used a machine called a "alien dvr" a 8 port machine set me back £1000 uk pounds, i dont know if thats in your budget, i have used the digiguard machine its ok compared to alot of crap out their.for cameras try a company called y3k , they are generally the cheapest. p.s. how much do you pay for your digiguard machines?