The Logic Off Topic list

I want to create a web site for my own music that would work like iTunes. I need it so people 
can listen to a portion of a song and buy the song or album if they want using credit cards or 
Pay Pal etc.

I know there are places like StoresOnline.com but I'd like to look at other options like getting 
the software and doing it myself. I'm thinking of contacting the credit card companies for 
info but I thought I'd fly this past anyone who's already bought the t-shirt.

Thanks,

Peter Charlers Naugler