But, does anyone know of any standard Health Care Insurance providers and what is the normal package employees receive? (Med, PTO, Bonus, allowances, Etc) for a call center environment?
Normal? Absolutely nothing, apart from the work contract which entitles them to health care from the state.
Given that there is quite a decent supply of young, unemployed workers on a conveyor belt here, there really is no need to pay anything much in Poznan - you'll attract them without any trouble. Certainly among young "arts" graduates, jobs are very thin on the ground.