What do ad agency services cost? For example: Brochures, logos, hourly rates etc.?

Depending on the agency and what you need done, services will cost anywhere between $150 and $200 per hour. Typically it depends on how senior the staff are who are working on your stuff. You might be able to negotiate a blended rate, but that's usually for bigger accounts. They also work on media buying commissions, but, again, that's for big accounts. If you're talking about a small one or two person shop, it all depends, again, on what you need done and what your budgets are. But, with a smaller shop, it should be cheaper than a full service agency.