Dang, and here I was going to bring up Turnbite myself, until hbost beat me to it.
Anyway, yes, Turnbite, or something similar, is certainly an option, even if it costs money (though hardly a lot), and it’s only a partial solution at best… my audiobooks of choice at the moment is Robert Jordan’s Wheel of Time series, which are usually four to five separate tracks lasting eight hours apiece. Definitely a situation where the usual Audible bookmarking and chapter-selection options would come in handy… but better than nothing, especially when we’re dealing with an MP3 player that’s bloody perfect in almost every way.
Anyway, Grudowski380, Turnbite’s pretty user-friendly, so I’d suggest looking through the helpfiles on it after you’ve got it all set up. Essentially, though, Turnbite’s a fancy loopback-recorder program (that is, a program that records the sound playing on your computer at the time), with the convenience of marking the exact start and end of the file. So you load up your Audible file into Turnbite and have it record it into MP3 format, then load it onto your Sansa in WMP/Y!/Rhapsody, or whatever your music-playing client of choice is, like any other song.
As for your AudibleListener credits… don’t let those just expire! Keep in mind that while credits may expire, purchased books are yours to keep until the Rapture, the sun exploding, or whatnot. :smileyvery-happy: I myself have an Audible purchase I made back when I had my first MP3 player (A Diamond Rio 500, with a glorious 64megs of internal memory) that I still have complete access to.