Alternatively, an inexpensive, portable solution to your problem is to get a Zoom H2 pocket recorder. I just bought one for $169 on sale...
It records from mp3 (no converting necessary) all the way up to 24/96 surround sound, it will act as an audio interface for your computer (if you don't already have one), it is small enough and light enough to take everywhere you go, the files transfer lickety-split to your computer (to add to a website), and it has NO moving parts (records to an SD card).
If you don't want the learning curve of computer recording, and could use a handy dandy pocket recorder of the highest quality, give one of these a whirl...
BTW, coolest feature? It allows multiple folders to play back or record into. So you can put your break music mp3's in one or more folders (or your tracks) and record into a different one. It will play ONE song at a time (for you, Donny!) or the whole list in order. It's not an iPod, but it DOES record well.
The H4 is a bit more expensive, offers XLR and 1/4" inputs (H2 is 1/8" stereo minijack only), and one thing the H2 can't do... overdub. That's about the only thing worth getting it for over the H2, and it's clunky at best compared with a DAW.
But either of these will do away with the need for a computer audio interface and complicated recording programs. Check it out, it might be all you need...
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An arranger is just a tool. What matters is what you build with it..!