you can't go wrong with DeWalt or Milwaukee. Bosch, I'm not sure of in their SDS capabilities. I am a huge fan of DeWalt, I haven't been let down. Their SDS is the best SDS I've ever used. They have a 1/2" drive impact that will snap lugs off cars if you're not careful. Someone recently posted a photo of a brushless SDS so if it's not available, it will be soon. The current SDS will blow through some batteries though. I've used as many as 12 in a day. Drilling 3/4" - 1" holes in fully cured 5,000PSI concrete. If you can research the brushless and can afford to wait, I'd go brushless. DeWalt also has a fantastic dust collection line called "perform and protect." If you have a need for dust collection, due to working indoors or just want to save your lungs, go with DeWalt.