I'm not familiar with what is good and what lasts fairly well. This computer will be used to run 4 security cameras at all time. Nothing to major. The software needs 2ghz and 1gb of ram at least. It also recommends at least a GeForce2 MX200 32mb video card. I need a recommendation on a motherboard/processor/ram setup and a case to fit it all in for $300 at most cheaper if possible.