I have outgrown my current shopping cart and am now searching for a flexible, simple to use, easy to maintain e-commerce solution that includes the following features:

1) Shopping Cart
2) Inventory Tracking
3) Order Management

I am currently using a very simple (but great starter) web-based cart called ASecureCart. I am also looking for a good accounting package to make my life easier when tax time comes around.

Currently, I am doing everything manually in spreadsheets including inventory tracking, accounting and order management and it is getting to be too much.

I have looked into going with Volusion and like the variety of features that it offers but find that it is not very flexible when it comes to layout. I would be limited to using Volusion's product layout templates...

Any guidance would be MUCH appreciated!