I would like to replace my current damaged Sun black eye disk rims and Shimano M475 hub with something slightly better. I only want to spend about $200-$300. I am 200 lbs and I do the odd race but mostly lots of commuting on gravel paths and fast technical rocky trails ( no big drops). Are these ones any good http://www.pricepoint.com/detail/189...elset-2010.htm

Thanks and sorry for the newbie question