This has had excellent reviews
http://www.musiconmypc.co.uk/product_info.php/products_id/216?osCsid=eb68b734c16effa9565cb2d8123dcac0
It's only portable if you have a lappy though, however, it's a USB powered condenser mic so you don't even need a sound card for it to work... although... might be tricky hearing the results without one!
http://www.musiconmypc.co.uk/product_info.php/products_id/216?osCsid=eb68b734c16effa9565cb2d8123dcac0
It's only portable if you have a lappy though, however, it's a USB powered condenser mic so you don't even need a sound card for it to work... although... might be tricky hearing the results without one!