If you looking for some good hdmi cables you should check out www.cablesondemand.com. They are running a special through august. here's the promo code WAAVJY7 for 10% entire purchase.
Personally. If you don't want to upgrade the other parts of your stereo, I wouldn't recommend getting a h/u player. You would lose all of your factory controls. You wouldn't get the full benefits of a full stereo system and lose the factory parts.