So I currently own a home to which I would like to finish off the basement in the near future. Currently the basement is just concrete with cinder block walls on the outside. I have a normal sump pump in the corner like most places. I know in the past, the previous owner had light cracks in the cinder block walls, as there is evidence of patching the walls with cement. For the time that I have lived in this house (about half a year only) I have never had any water problems at all. The only thing noticed during the home inspection was that the moisture was a little high on one side of the basement, but not an actual leak.
Anyways, my question is what is the most recommended way to solve this to prevent future problems? I do know there are channel type systems like the squidgee (http:\www.waterproof.com) but I have heard mixed reviews about drilling holes into your walls, similar to drilling holes into a boat to better protect it. I do know that I will need to build my walls about a foot or so away from the cinder block walls. So should I invest into a system like the one I showed? If I haven't had any water problems, should I do nothing? Or are there outside options I should look into? I would definitely not like to tear up my yard.
I am not asking for specific brands or anything as I imagine that is off topic, but just general methods that are recommended and reasoning as to why.