You can use Winamp,

use Girder to control it, it supposed to be able to control anything on the PC.

BTW have you got the 5450 yet? if so what are your impressions of it and available software.

I have had mine for about 3 weeks now, bought mainly for pilot logbook software, and remote control duties.
So far the only logbook software I can find is for US FAA regulations, and I need UK/european stuff, and cant seem to get PDA win remote software to do anything vaguely useful, like learn codes and replay them.

For me the bloody thing has been a wast of time money and effort