I just got my acoustic guitar connected to Rocksmith, and I did it pretty cheaply, so I thought I'd share what I did. You need two pieces of equipment: An Acoustic Pickup A PreAmpThere are a wide variety of acoustic pickups available, and you can spend quite a bit of money if you want to. Many are hard installed into your guitar, and require cutting a hole in the cabinet. The instructions on most of these suggest that you take it to a local guitar shop to have them do it for you. I wasn't interested in this... I also wanted to keep this on the cheap, and have something that was removable. Therefore, I purchased an HDE® Guitar Pickup Acoustic / Electric Transducer at Amazon for $17. It's removable, connecting to the soundhole of your guitar with little clips. It has an output cable (male) that dangles from your guitar. The signal coming from the pickup is weak, so you need to amplify it. Again, looking for a cheap option, I purchased a Behringer PB100 Preamplifier/Volume Booster at Amazon for $25. You can buy a power cable (it doesn't come with one), but it can also run on a 9V battery. I set the gain at about 40% (maybe 45%) to balance out feedback and still have the game detect your notes. Plug the cable from your acoustic pickup into the IN of the PreAmp, plug the RealTone cable into the OUT of the PreAmp, turn it on, and you're ready to go. Works like a charm!