Two other very good options are puNES and Bizhawk.Links:Mesen:Bizhawk:puNES:Super NintendoProbably the next most common system to emulate and there really is only one option here for the beginner and that is Snes9x. This emulator is quite simply the best stand alone NES emulator out there today, it is very easy to use and is extremely accurate.
I did write up a startup guide though for anyone wanting to get started using and can be found here:Now that Retroarch is out of the way lets talk about some of the popular and common systems that people want to emulate:Nintendo Entertainment SystemIf you start out Googling NES Emulator you will most likely find Nestopia or Fceux as the more popular and older options and while they are good emulators and not bad choices I feel there is one much better choice and is very easy to get up and running, Mesen. Retroarch really is amazing and I really suggest using it once you get your feet wet with the basics and want more from your emulation experience but it really is not for the total beginners. For the purposes of this guide though I will stick with the basic and popular consoles. Also I will only talk about stand alone emulators and not Retroarch but I will take a moment right now to talk about it.