@LukeUSMC, if you plan on learning electronics and microprocessors, then I recommend investing in some basics. Besides books, this include a good logic analyzer and a simple scope. OpenScope seems to be covering both bases though it is not clear when they will have the protocol analysis ready. What is also not clear is whether scope probes will be included or even supported. Take note that the logic input stuff is only rated to 3.3v so no 5v arduino signals are supported! For $79 however, you can't go very wrong IMO. After learning and playing, you can eventually invest in a more cable scope and logic analyzer.