i plan on buying a broken xbox on ebay but it is the Motherboard only, it doesn't come with a DVD drive. i know you can tell what dvd drive you have by looking at it but since this wouldn't come with one idk which one to buy. also i know i would have to flash the dvd firmware with the official xbox firmware, would this kit be fine?

http://www.amazon.com/Drive-Adapter-Converter-Optical-External/dp/B001OORMVQ/ref=sr_1_2?ie=UTF8&qid=1331090118&sr=8-2

I see people on youtube saying i need x360PRO USB which is very expensive, 10 points for very through answers