Bulk Re-Directs

I have a current shopping cart which i want to switch to another domain but We have some good results for sure pages in yahoo and google so wat I can do is setup upward multiple 303 re-directs from a category and all of the product pages nonetheless therre are a great number of that it will require forever doing that individually, does any one have a solution so I can create a re-direct in the category that will automatically forward every one of the subpages in that will category. Hope this adds up thanks in progress.