I don't know about commission, but I'm with you - I'd expect someone who knows the country well to organise a better trip. Where are you going? I usually just organise everything on my own, but on one trip I used a fantastic travel agent who operates out of Varanasi. I know he does tours to Nepal etc. as well, and I believe he covers most of the country. If not, he'd definitely be able to recommend you someone good. He was brilliant. Really knowledgeable, really kind and friendly, really cared about making sure that people who did a tour with him had a good time, and extraordinarily honest. He was also such a great guy - for example, he started a school running out of his house for poor kids who didn't have anywhere else to learn! His name was Rajeev Rastogi, and his company was named Kashi Journeys - maybe he'd be able to help you.