Automatic redirects when changing category structure

[gfxpixeldesigns]

Hello,

I have a client who is looking to re-structure their categories and products on a rather large scale. This is going to affect around 1000 product urls so i'm looking to implement some sort of redirect feature, ideally an automated one. I dont know if any of you are familiar with magento but in there if you edit a category title an option below is automatically ticked which enables the old url to redirect to the new one. I just wondered if anyone had any experience with something similar in virtuemart 2 or how difficult this would be to develop.