MacWorld has a great article on digitizing your old cassettes and LPs. Read the comments as well — they contain good information. This article is only for Mac users. They mention the following programs to use to digitize your analog audio:

• CD SpinDoctor, ~$40.
• Final Vinyl, ~$40 includes iMic product.
• Audacity, free.
• Garage Band (part of iLife ‘08, ~$80).

Another option is: Audio Hijack Pro, ~$32.

I’ve digitize a number of old audio cassettes recordings my dad made in the ’60’s. They are now in iTunes and I can share it with my family and my children. Great stuff!

What do you use to import old cassettes and LPs?