If there's no particular reason you need a professional setup (aesthetic, insurance requirement, particular set... etc), many solutions on the market can easily be DIY'd. Even Costco carries a few pro-grade kits that should be fairly easily DIY'd and managed at your fingertip.
Netgear Arlo line up have raved reviews. Built-in battery that last months at a time (depending on usage) and even if you want it wired (so it provides 24/7 feed), it shouldn't be that complicated as the only wire you need to hide is the power. | 