I had the same problem with a special offer view I created...

To show product price including tax, I themed my view, and in the view.tpl.php file, for the price field, I added the tax to the product for the good roles.

To get the tax you can use _uc_product_taxes_calculate() function (see in the module). After that, it's pretty easy to make the simple calculation to add the tax to product price.