24 bit depth recordings sound better to my ears than those that were tracked at 16. More heft. But I think that jumping from 44,100Hz to 96,000Hz sampling rate makes much more of a difference. When you get your digital audio iface [the fast track pro, I think you mentioned] A good diy comparison for how dramatic the difference can be, is easily done by ripping a song from your favorite vinyl record to 16/44 and 24/96 wavs while maintaining the same input level between takes. Any DAW should be able to accommodate you for this test.