Choosing right golfing aid is important too. You should choose the one which has a lot of positive feedback. Personally I have tried a loads of golf swing aids and only few really helped me to cut few strokes of my game.
I was very happy when I found aid which helped me to improve my golf swing withCheap Golf Clubs. I suggest to stick to only one aid and practice by it. You will get much better results. Trust me.
There are three basic grip types. You should try them all and choose one which is best for you. There are never ending discussions about which golf grip type is the best. But in my opinion they are all same.
Here are those three grip types :
Overlapping grip type. Overlapping grip type setup: Little finger of one hand placed over index finger of other hand.
Interlocking grip type. Setup: Similar to the overlapping grip setup just those to finger are interlocked instead of overlapped.
Baseball grip type. Setup: Those two finger do not overlap or interlock, they just meet together.
Try all those grip types and choose the one which is most comfortable to you.