Right now in order to sound integrate you need to be a sound integration admin. If you're interested please send an email to Language Guide's director, Tom, and if possible mention your plans for how you're going to do the recordings.
The quality of your computer's sound card is just as important as the quality of the microphone. If you're purchasing recording equipment, you might consider purchasing something like the Blue Sound Yeti, which combines a microphone with a high quality sound card. If you make a recording and would like some feedback on the quality, send an email with the recording attached to Tom. If you'd like to use a recording studio, the organization might have some funds available to help defray the costs. Please send Tom an email.
Sound integration is performed with the help of Audacity, a free audio editor and recorder.