Okay, let’s tackle this. So Greg Walker has a diverse skill set that includes cloud computing, salesforce.com, and saas, which are in high demand. He also has experience in lead generation, solution selling, and contract negotiation. These skills are valuable in the sales and business development space. Considering his skills and experience, especially in a location like Fullerton, California, which is a hub for tech and business, I would estimate his hourly rate to be around $150. This is slightly lower than what a senior sales or business development professional with similar skills might charge, but it's still a competitive rate for someone with his experience and skill set.