[LAU] linux compatible USB Audio Interface

Hello, I am a musician and recently joined this mailing list. I use Fedora18 and would like to use it to create music. I am having trouble getting off the ground as I have not identified a USB Audio Interface that is compatible with Fedora. I have visited the ALSA soundcard matrix wiki and a number of forums in hopes of finding a device. Unfortunately many of the models and makes talked about are a few years old now and, frequently, are no longer available from distributors. I imagine a few people on this list use some sort of soundcard to test/use all of the great software that is being created for linux users. I am inviting suggestions from people with experience in the application of audio hardware in the fedora environment. I am looking for a device that uses an independent power plug, connects with usb 2.0, and has both MIDI and analogue inputs and outputs. A device similar to this would be great: http://www.presonus.com/products/AudioBox-44VSL/media Thanks and I look forward to offering feedback on software once I am up and running. -Occhi