DCDi stands for Directional Correlation Deinterlacing, and is a technology developed by a company named Faroudja in 1996 to improve the quality of low resolution video. There should be no difference between DCDi by Faroudja and DCDi Cinema. I hope this helps!

You will need to purchase the Wii gaming system, and the Wii Fit game. The Wii gaming system comes with the Wii sports game included, and I am satisfied with the tennis game on Wii sports. Another tennis game that has gotten great reviews is Mario Power Tennis.

The Wii gaming system and the Wii fit game come with all the cords and controllers that you would need to begin, but if you want to play your games against another person you will need to purchase another Wii controller. I would also suggest either getting a charge station for your controllers, or purchasing plenty of AA batteries. If you want to see a charge station for the Wii controllers you could look here: http://www.bestbuy.com/site/olspage.jsp?skuId=8258495&type=product&id=1169857827334. I hope this helps!

We do sell the TomTom Rider GPS system, which is designed for motorcycle use. If you want to see this GPS system you could look here: http://www.bestbuy.com/site/olspage.jsp?skuId=8642338&st=TomTom+Rider&lp=1&type=product&cp=1&id=1195597772124. I hope this helps!

Best is a very subjective term, and I would really suggest going to a Best Buy® store and taking a look at what is out there. I can say that the new Samsung 40 inch LCD model LN40B530 has gotten great reviews, and within your budget you really couldn't go wrong with this TV. If you want to see this TV you could look here: http://www.bestbuy.com/site/olspage.jsp?skuId=9230691&type=product&id=1218063829730. I hope this helps!