do it yourself..buy a carbide bit set online..for about 60-80 depending on the set. then use a drill..itll take some time, to get it nice and smooth think of it as an investment..more tools!! you can check on ebay too..
eBay: New 8 PC X 1/4" CARBIDE BURR (Fast Shipping) (item 330088282955 end time Feb-19-07 19:18:42 PST)
thats the same on i had..i gave it to one of my boys for helping me out.