I already have a D-LINK DSM330 which I purchased from Amazon back in Novemeber when it was first launched. It really is a superb pice of kit, effortlessly streaming video (inc. HD content), audio and photos plus some online content via plugins (Facebook, Google Maps, Flickr etc.). It also has a great interface, browsing via movie poster images, album covers etc. I had tried various solutions previously - I use it primarily for streaming video to my TV in the living room from my PC upstairs - and always had problems. No problems with this one. Highly recommended if you're looking for a wireless media device.
Just noticed when getting the link to this device when responding to another post that it's now on offer for £99.99 - I paid the full £130! Snap it up at this price!