Alfred, When I first purchased my compressor I was in the same boat. I spent all my money on the compressor and had very little for air tools. I purchased the combo kit from costco and have been using it for about three years now. The only thing in that kit that I am disappointed in is the impact. I had an idea it would be too weak and I was right. Everything else is holding up great though. For the price I don't think you can beat it.

If you go the costco route just plan on buying a real impact in the future. As I upgrade to better air tools my costco ones are becoming trail airtools since I have onboard air.

Unless you are going to use these tools professionally I doubt you will be disappointed in anything but the impact that comes in the costco combo.