SharePoint approval

I need to add sharepoint approval to the list ... and I was hoping to use the default approval process ... but ... I need to run some code after an item is approved. Should I then use VS to create a custom workflow?

I need to run the code that is currently executing in the event receiver. I need to move the code to another function (as we are moving the processing out of the event receiver code and now based on the item assertion). This code will run after the item is approved and can be posted as utility or .net code.