Get Products from a specific Category ID
<?php
// http://stackoverflow.com/questions/454462/how-to-get-products-from-a-particular-category-in-magento-ecommerce
$products = Mage::getModel('catalog/category')->load(category_id); //put your category id here
$productslist = $products->getProductCollection()->addAttributeToSelect('*');
foreach($productslist as $product)
{
echo 'price: ' . $product->getPrice() . '<br/>';
}