hi i want to install 12 cameras plus 2 ptz is this pc good enough ? http://www.bestbuy.com/site/hp-pavilion-desktop-intel-core-i7-8gb-memory-2tb-hard-drive-hp-finish-in-twinkle-black/5481602.p?loc=0&ref=8575135&acampID=a4e5f304677411e694cccedd434cefcf0INT