Build Twitter Followers

I would like to build a targeted list of real twitter followers in the finance area in australia. Specifically financial planning, financial services, Self Managed Super Funds etc. We are looking to build a list of followers similar to our clients. Our clients are typically middle class, middle aged, mid to high income earning Australians with a self managed super fund. Basically any person who would be interested in following our investment notifications for the investments we make posted on twitter. If you require any further clarification please contact me.