pos and db for retail on fedora

Hi

I work in a very small specialist record shop here, and am 
considering trying to make a server and machine for the shop which 
tracks sales and inventory.  Linux is perfect in the respect that I 
enjoy using it and it fits the bill in so many ways:  cost, 
stability, our (his and my) particular shared stance on expensive 
proprietary computing.  The owner has given me the go-ahead to try 
something, but I have no idea where to start.  I would like to use 
Fedora because it is what I am most familiar with (RH 7.0 was my 
first distro, I use FC1 now).  Does anyone have any recommendations 
on where to start?  Easy is better than 'the best' I am mainly a 
musician and audio engineer, and am not familiar with MySQL and php 
and the like...although it seems I might have a crash course in the 
near future.  Thanks in advance for any advice you may provide.