I've put together a gallery of some of the available options for aftermarket handlebars. You can view it here. Most prefer aluminum bars due to their strength, light weight, and lack of flex. The main challenge with them is the smaller internal diameter, meaning you'll have to get different inserts to use the barend handgueard mounts. If you go with 7/8 in bars, you can use your stock clamps. If you choose larger tapered bars, you'll also have to get clamp adapters. Personally, I like the ProTaper SE series. I'm leaning toward the CR High bend. I hope this helps.