I am not sure why you would want an audio interface for practicing.
When I practice I am preparing to play in real life, so I would use a separate guitar and amp. No need to plug into the computer.

Amplitube and an interface might be needed for recording, but not for practicing. Am I missing something?


Flatfoot sez: Call me when 'Talent-in-a-Box' is ready to ship! -- [8{>

Got some tunes on You Tube:
http://www.youtube.com/user/flatfoot50
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http://jdwolfe0.wixsite.com/learnbiab