Fenderman please point me in the right direction. what would you recommend?
There are many variables...I would suggest reading through the many posts on the subject..
Over the past few years, hikvision and dahua have been reliable brands...you can find these in costco under swann and lorex brands respectively...they have a great return policy.
If you want to have more choice with respect to the type of cameras (dome, turret, bullet, audio, lens size (wide angle, narrow) you will have to piece together a system...
You need to determine if you want to use a standalone NVR..or a pc based NVR.
You can buy the cameras direct from china for cheaper (via known reliable sellers on aliexpress), though you will not get warranty/support and you will have firmware update issues if you choose to do so..
Alternatively you can buy from US base sellers like Nellys security (site sponsor) or LTS, see thread by user milkisbad...where you will get support and warranty...
Make sure to post your questions before you buy so that you dont end up with something not suitable for you...
Take the time to learn about your options and make an informed decision...