Primarily, I burn disks in the single digit speed because it's a much more reliable burn and better quality as well. As such, speed isn't all that important.
You also didn't state whether you want the burner to be internal or external, but you'll need to decide which type you're looking for.. As to brand, there are a lot of good ones. LIte-on, ASUS, LG, etc. I've also used some Samsung burners that work well.
Hope this helps.
Grif
Does anyone knows which is the best DVD burner with the highest speed out there, what brand ?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic